Titanium in Guitar Hardware: Why Grade 5 Matters

Titanium is not one single engineering material. Commercially pure titanium and titanium alloys can differ substantially in strength, ductility, formability, fatigue behavior, wear behavior and machinability.

KISS MY STRINGS uses Ti-6Al-4V (Grade 5) for its CNC-machined titanium bridge hardware because its combination of low density, high strength and dimensional stability is particularly suitable for compact, highly loaded precision components. Explicit Grade 2 exceptions are used where forming behavior or ultra-low handling mass serves the component better.

Titanium Fundamentals

What Is Titanium?

Titanium is a metallic chemical element with the symbol Ti.

Engineering titanium materials fall into several broad groups, including:

• Commercially pure titanium grades
• Alpha alloys
• Alpha-beta alloys
• Beta alloys

Commercially pure grades contain titanium with controlled limits for elements such as oxygen, iron, nitrogen, carbon and hydrogen.

Alloyed grades use additional elements to create another balance of:

• Strength
• Ductility
• Toughness
• Temperature capability
• Heat-treatment response
• Fatigue resistance

Titanium Grade 2 and Titanium Grade 5 are therefore not two quality levels of the same material.

They are technically different material systems intended for different requirements.

What Is Ti-6Al-4V Grade 5?

Ti-6Al-4V is an alpha-beta titanium alloy.

Its nominal composition is approximately:

• Approximately 6 percent aluminum
• Approximately 4 percent vanadium
• Titanium as the principal remaining element

It is commonly identified as:

• Titanium Grade 5
• Ti Grade 5
• Ti-6Al-4V
• Ti-6-4
• UNS R56400

The exact permitted composition is defined by the applicable material specification.

Ti-6Al-4V is one of the most widely used titanium alloys because it combines:

• High strength
• Low density
• Good fatigue strength
• Useful fracture toughness
• Excellent general corrosion resistance
• Broad availability in engineering product forms

It is used where high mechanical performance must be achieved without the weight of a similarly sized steel component.

Grade 5 Is Not Pure Titanium

Grade 5 is sometimes described casually as high-grade titanium.

A more accurate description is:

Ti-6Al-4V is a high-strength titanium alloy.

Its aluminum and vanadium additions influence the alloy phases and allow substantially higher strength than commercially pure titanium.

This distinction matters because the mechanical behavior of a component cannot be predicted from the word titanium alone.

Grade 2 vs. Grade 5

What Is Titanium Grade 2?

Grade 2 is a commercially pure titanium grade.

It is commonly identified as:

• Titanium Grade 2
• CP Titanium Grade 2
• ASTM Grade 2
• UNS R50400

Its characteristic advantages include:

• Excellent corrosion resistance
• Good ductility
• Good cold and hot formability
• Good weldability
• Moderate strength
• Suitability for formed sheet and industrial equipment

Grade 2 is not an inferior or counterfeit form of titanium.

It is the correct material for many applications in which formability, corrosion resistance and ductility are more important than maximum structural strength.

Grade 2 vs. Grade 5

The following values illustrate the material difference using representative room-temperature data for common mill conditions.

The exact values depend on:

• Product form
• Material specification
• Heat treatment
• Processing history
• Grain structure
• Test direction

The table is a material comparison, not a design value for one specific KMS component.

Approximately Three Times the Yield Strength

Using the referenced minimum values, annealed Grade 5 can provide approximately three times the minimum yield strength of Grade 2.

Yield strength describes the stress level at which permanent plastic deformation begins.

For guitar hardware, greater yield strength can support:

• Greater resistance to permanent bending
• Stronger compact fasteners
• More stable locking components
• Greater thread-load capacity
• Reduced risk of mechanically deforming thin or highly loaded parts

This is particularly relevant where the component must remain small while supporting concentrated loads.

Strength Is Not the Same as Stiffness

Grade 5 is much stronger than Grade 2.

It is not three times stiffer.

Stiffness in the elastic range is closely related to the material’s elastic modulus.

The published modulus ranges of Grade 2 and Grade 5 overlap substantially.

At identical geometry and load, both can therefore show a broadly similar order of elastic deflection.

The major Grade 5 advantage is that it can tolerate much greater stress before permanent deformation begins.

This distinction is essential:

• Elastic modulus influences temporary deflection.
• Yield strength influences resistance to permanent deformation.
• Geometry influences both.
• Material strength does not replace correct component design.

A Grade 5 component still needs suitable thickness, shape, support and thread engagement.

Grade 5 Compared with Steel

Ti-6Al-4V has only about 56 percent of the density of steel.

This allows a component of identical size to be considerably lighter.

However, the elastic modulus of common steels is substantially higher than that of Grade 5 titanium.

At identical geometry:

• Steel is generally elastically stiffer.
• Grade 5 titanium is substantially lighter.
• Grade 5 provides an excellent strength-to-weight ratio.
• Final rigidity depends strongly on component geometry.

Grade 5 should therefore not be described as universally stiffer than steel.

It creates a different relationship between:

• Strength
• Weight
• Elastic response
• Geometry
• Corrosion resistance

Mechanical Performance

Fatigue Performance

Ti-6Al-4V is recognized as having good fatigue strength.

This is relevant to components exposed to repeated loading, such as:

• Tremolo baseplates
• Pivot areas
• Fasteners
• Locking components
• Tremolo blocks
• Arm-system components

Fatigue performance is not determined by the alloy name alone.

It is strongly affected by:

• Surface condition
• Machining marks
• Notches
• Threads
• Component geometry
• Heat treatment
• Microstructure
• Residual stress
• Corrosion and damage

A poorly finished Grade 5 component can develop a fatigue-critical stress concentration.

High-performance material still requires high-performance manufacturing.

Corrosion Resistance

Both Grade 2 and Ti-6Al-4V provide excellent general corrosion resistance in normal atmospheric use.

Titanium spontaneously forms a thin, adherent oxide film when exposed to oxygen.

This passive layer protects the underlying material in many environments.

For guitar hardware, this provides advantages such as:

• Strong resistance to normal atmospheric corrosion
• Good resistance to perspiration-related exposure
• No requirement for decorative plating solely to prevent ordinary rust
• Stable natural material appearance
• Suitability for humid stage and touring conditions

Grade 5 should not be presented as universally more corrosion-resistant than Grade 2.

Grade 2 is specifically valued in many industrial applications for its exceptional corrosion performance.

KMS selects Grade 5 primarily for mechanical performance rather than because Grade 2 lacks corrosion resistance.

The Engineering Reason for Grade 5

KMS chooses Grade 5 where a component requires a combination of:

• Low weight
• High mechanical strength
• Resistance to permanent deformation
• Compact dimensions
• Precise threads
• Repeated load capacity
• CNC-machined geometry
• Stable contact surfaces

The choice is functional.

It is not simply a premium material label.

Why Grade 5 Matters in Guitar Hardware

A guitar bridge contains relatively small parts that carry concentrated mechanical loads.

These can include:

• Saddles
• Baseplates
• Tremolo blocks
• Saddle mounting screws
• String locking screws
• Locking insert blocks
• Fine-tuner components
• Arm sockets
• Tremolo arms
• Block mounting screws
• Selected mounting hardware

The loads may arise from:

• Continuous string tension
• Spring tension
• Tremolo movement
• Screw preload
• String locking
• Repeated setup work
• Player input
• Impact during transport or performance

Grade 5 allows KMS to create compact components with high mechanical strength while keeping the complete assembly comparatively light.

Resistance to Permanent Deformation

A bridge component does not need to fracture to become defective.

Permanent deformation can already affect:

• Saddle alignment
• Pivot geometry
• String locking
• Intonation
• Screw engagement
• Bridge movement
• Contact between components
• Return to pitch

The high yield strength of Grade 5 provides greater resistance to this type of plastic deformation than commercially pure Grade 2.

That advantage is especially relevant to:

• Thin baseplate areas
• Small locking components
• Long screws under bending load
• Threaded connections
• Tremolo parts exposed to repeated movement

Threaded Components

Titanium fasteners require more than high bulk strength.

A reliable threaded component also requires:

• Correct thread geometry
• Suitable engagement length
• Accurate pitch diameter
• Clean mating threads
• Controlled surface condition
• Appropriate tightening force
• Suitable material pairing

Grade 5 provides a strong material foundation for compact screws and threaded components.

It does not make incorrect assembly safe.

Even a high-strength screw can fail through:

• Cross-threading
• Overtightening
• Insufficient engagement
• Damaged mating threads
• Incorrect alignment
• Galling
• Repeated abusive tool use

KMS Material Strategy

KMS Grade 5 Construction

KISS MY STRINGS uses Ti-6Al-4V (Grade 5) for its CNC-machined titanium bridge hardware.

Depending on the product, this includes components such as:

• FlowTrem2 baseplates
• FlowTrem2 saddles and saddle mounting parts
• MONOLITH tremolo blocks
• String Locking Screws
• Saddle Mounting Screws
• Locking Insert Blocks
• Fine-Tuner Screws
• studs and other precision-machined titanium hardware

The exact material assignment is defined by the individual product. The Titanium FlowBar and the formed Spring Claw are explicit Grade 2 applications; OmniPort is a mixed-material assembly selected for wear, retention and handling requirements.

The Grade 2 Exceptions

Formed Spring Claw

The KMS Spring Claw is formed from Commercially Pure Titanium (Grade 2). Its manufacture requires controlled bending, making Grade 2 the appropriate choice where formability is central.

Titanium FlowBar

The lightweight Titanium FlowBar is also produced from Commercially Pure Titanium (Grade 2). Here the material is selected for its exceptionally low handling mass and suitable formed-arm behavior. It is paired with a Stainless-Steel FlowBar for players prioritizing maximum mechanical robustness.

These are deliberate function-specific choices:

• Ti-6Al-4V (Grade 5) for precision-machined, highly loaded components
• Commercially Pure Titanium (Grade 2) where forming behavior or ultra-light arm handling is the primary requirement

Grade 5 and Formability

Grade 5 can be formed, but its room-temperature formability is more limited than that of commercially pure Grade 2.

It also shows significant springback because titanium has a relatively low elastic modulus compared with steel.

Complex Grade 5 forming may require:

• Larger bend radii
• Controlled warm forming
• Hot forming
• Additional tooling
• Process-specific heat treatment
• Compensation for springback

This is one reason why a material suitable for a CNC-machined baseplate or screw is not automatically the best material for a deeply formed sheet component.

CNC Manufacturing

Grade 5 Is Demanding to Machine

Ti-6Al-4V is not difficult because it is simply extremely hard.

Its machining challenges arise from a combination of properties, including:

• Low thermal conductivity
• High strength at the cutting zone
• High chemical reactivity
• Tendency to smear or weld to cutting tools
• Galling tendency
• Concentrated cutting forces
• Low elastic modulus
• Rapid tool wear when the process is unsuitable

Heat remains concentrated near the cutting edge rather than being carried away efficiently through the workpiece.

Requirements for Controlled CNC Machining

Reliable machining of Grade 5 requires an appropriate process, including:

• Rigid machine setup
• Secure workholding
• Sharp cutting tools
• Suitable carbide grades
• Controlled cutting speeds
• Defined feed rates
• Effective coolant supply
• Reliable chip evacuation
• Tool-wear monitoring
• Stable machining strategies

TIMET specifically recommends low cutting speeds, sharp tools, generous cutting fluid and rigid setups for Ti-6Al-4V.

Grade 5 therefore increases:

• Raw-material cost
• Tooling demand
• Machine time
• Process planning
• Inspection requirements

The result is valuable only when the finished geometry and surface quality justify that effort.

CNC Precision and Material Quality

A premium alloy does not correct poor manufacturing.

The finished component still depends on:

• Dimensional tolerance
• Surface finish
• Flatness
• Parallelism
• Thread quality
• Edge geometry
• Burr control
• Contact fit
• Quality inspection

Material makes tone.

Manufacturing creates precision.

Both are required.

Wear and Contact Engineering

High Strength Does Not Mean High Wear Resistance

Ti-6Al-4V has high structural strength.

Bare titanium nevertheless has relatively poor behavior in some loaded sliding contacts.

Titanium surfaces can show:

• Adhesive wear
• Material transfer
• High and unstable friction
• Smearing
• Seizing
• Galling

Galling occurs when loaded surfaces adhere locally and material is transferred or torn during relative movement.

This is especially relevant when similar titanium surfaces slide against one another under pressure.

Static Contact vs. Sliding Contact

Not every titanium-to-titanium interface has the same requirement.

Static or Clamped Contact

Examples can include:

• Block clamped to baseplate
• Saddle fixed to baseplate
• Secure screw joint

Here, the goal is:

• Full seating
• Stable preload
• Minimal unintended movement
• Defined contact

Sliding or Repeatedly Adjusted Contact

Examples can include:

• Fine-tuner interfaces
• Moving string contact
• Frequently adjusted threads
• Pivot-related contact
• Components with microscopic repeated slip

Here, friction, wear and galling must be considered directly.

Direct titanium contact is therefore not automatically good or bad.

Its suitability depends on whether relative movement is intended.

Engineering Against Galling

Possible engineering measures include:

• Dissimilar material pairings
• Controlled surface roughness
• Suitable clearances
• Functional coatings
• Surface hardening
• Purpose-designed contact geometry
• Reduced sliding distance
• Replaceable wear components
• Suitable lubricants where explicitly permitted
• Controlled assembly procedures

High-strength bulk material and engineered surface behavior serve different functions.

Component Applications

Titanium Screws

Grade 5 is particularly suitable for compact, highly loaded screws because it combines low weight with high strength.

Potential applications include:

• String locking screws
• Saddle mounting screws
• Tremolo block screws
• Fine-tuner components
• Other bridge fasteners

The advantages depend on:

• Correct screw geometry
• Suitable mating thread
• Full engagement
• Controlled tightening
• Suitable surface condition

Titanium screws should not be tightened according to generic steel torque assumptions.

Product-specific instructions take priority.

Titanium Saddles

A saddle is the primary bridge contact point for the string.

Grade 5 provides:

• High resistance to permanent deformation
• Stable saddle geometry
• Strong support for compact designs
• Corrosion resistance
• Suitability for precision-machined contact forms

The result is determined by both material and design.

Important saddle variables include:

• Contact shape
• Radius
• String centering
• Saddle fit
• Intonation mechanism
• Surface treatment
• Relationship to the bridge body

KMS V-Saddles

KMS V-saddles center the string through their geometric form rather than through an individually filed conventional slot.

This supports:

• Defined string centering
• Broad compatibility with common string gauges
• Gauge changes without conventional reslotting
• Consistent contact geometry
• Preservation of the designed saddle surface

Do not file a conventional string slot into a KMS V-saddle.

The V geometry is part of the component’s function.

Titanium Tremolo Blocks

A Grade 5 titanium tremolo block is substantially lighter than a similarly sized steel or brass block.

Changing the block material can change:

• Moving mass
• Tremolo inertia
• Spring-system interaction
• Player feedback
• Complete bridge response

The block cannot be evaluated by material or weight alone.

Also relevant are:

• Block dimensions
• Mounting contact
• Baseplate construction
• Screw pattern
• Spring-hole geometry
• Cavity clearance
• Complete tremolo design

The KMS MONOLITH block is engineered as part of the FlowTrem2 system rather than as generic additional mass beneath the bridge.

Surface Engineering

The surface of a titanium component can have requirements that differ from those of its core material.

The Grade 5 substrate provides:

• Structural strength
• Low weight
• Dimensional stability
• Corrosion-resistant base material

A functional surface treatment can additionally provide:

• Lower friction
• Increased surface hardness
• Greater wear resistance
• Controlled contact behavior
• A defined appearance

The coating or treatment must suit the actual contact and load.

PVD Is a Process Family

Physical Vapor Deposition, or PVD, is a family of vacuum-deposition processes.

PVD is not one specific coating material.

Different PVD coatings can be engineered for:

• Wear resistance
• Surface hardness
• Friction control
• Color
• Chemical stability

Therefore, the statement PVD-coated does not fully describe the surface.

The actual coating system matters.

DLC Is a Coating Family

Diamond-like carbon, or DLC, describes a family of carbon-based coatings.

Depending on composition and deposition process, DLC can provide:

• Low friction
• High surface hardness
• Reduced adhesive wear
• Improved tribological behavior

DLC performance depends on:

• Exact coating type
• Adhesion layer
• Substrate preparation
• Coating thickness
• Contact pressure
• Counterface
• Environment

DLC is not simply black paint.

Black appearance alone does not confirm DLC.

Functional Coatings on Titanium

A suitable functional coating can address the difference between:

• Strong titanium substrate
• Demanding sliding surface

This can be relevant to:

• String-contact regions
• Sliding fine-tuner interfaces
• Wear points
• Components exposed to repeated adjustment

A coating should not be applied merely because titanium is technically capable of receiving it.

Its properties must support the specific component function.

KMS V+ Saddles

KMS V+ saddles combine:

• Grade 5 titanium substrate
• Precision-machined V geometry
• Application-specific low-friction surface treatment

The substrate provides the structural geometry.

The surface system is selected to optimize the string-contact interface.

KMS describes the functional result through:

• Stable string centering
• Reduced friction
• Wear-resistant contact
• Controlled string movement

The exact coating system is product-specific; refer to the current KMS product specification for the applicable coating name.

Anodized Titanium

Titanium can be colored through electrochemical anodizing.

The process increases the thickness of the naturally occurring oxide layer.

The visible color is created primarily by optical interference in that transparent oxide layer.

It is not conventional paint and does not rely on colored pigment.

Possible colors can include:

• Gold
• Blue
• Purple
• Magenta
• Green
• Bronze
• Multicolor or oil-slick effects

The resulting color depends on factors including:

• Oxide-layer thickness
• Applied voltage
• Surface finish
• Electrolyte
• Process control
• Viewing angle and lighting

Decorative Anodizing Is Not a Heavy Wear Coating

Colored titanium anodizing creates a very thin optical oxide layer.

It should not automatically be described as:

• A thick protective coating
• A heavy-duty anti-wear layer
• A substitute for DLC
• A substitute for a purpose-designed low-friction treatment

Decorative color and functional tribology are different requirements.

The surface defines function.

Natural Grade 5 Titanium

Uncoated Grade 5 titanium has its own metallic gray appearance.

Depending on the finishing process, it can appear:

• Machined
• Satin
• Brushed
• Polished
• Blasted
• Matte

Natural titanium does not exactly match:

• Nickel
• Chrome
• Stainless steel
• Aluminum

Its appearance belongs to the base material rather than imitating another finish.

Corrosion Protection and Decorative Finishes

Titanium does not normally require nickel or chrome plating merely to prevent atmospheric rust.

Decorative or functional treatments may still be selected for:

• Color
• Wear behavior
• Friction control
• Surface matching
• Product identity

This gives titanium a broader finish strategy than simply plating the base material for corrosion survival.

What Materials Data Can Prove

Published material data can establish properties such as:

• Density
• Tensile strength
• Yield strength
• Elastic modulus
• Fatigue behavior under defined test conditions
• Corrosion behavior
• Machinability
• Wear and galling tendencies

These data explain why Grade 5 is a suitable engineering material.

They do not establish one universal guitar sound for every titanium component.

Tonal Direction

KMS uses Grade 5 titanium within complete bridge systems designed around:

• Low moving mass
• High mechanical strength
• Precise contact geometry
• Controlled component fit
• Reduced unnecessary interfaces
• Application-specific surfaces
• Stable adjustment

Within this design context, KMS describes the tonal and tactile direction as:

• Fast attack
• Clear transients
• Strong note separation
• Controlled low end
• Reduced perceived low-mid congestion
• Long and even decay
• Direct dynamic feedback

These descriptions reflect the behavior and design target of complete KMS components.

They are not values printed on a titanium material certificate.

Titanium Is Not Simply Bright

Describing titanium only as bright is incomplete.

Brightness can refer to several different perceptions, including:

• Increased treble level
• Faster attack
• Reduced low-mid masking
• Stronger upper-harmonic definition
• Clearer note separation

A guitar can feel clearer and more immediate without becoming thin or harsh.

The KMS titanium direction emphasizes:

• Structure
• Speed
• Separation
• Low-end control
• Dynamic precision

rather than uncontrolled treble emphasis.

Fast Transient Response

The transient is the initial development of the note.

Within the KMS construction approach, Grade 5 titanium is used to support:

• Immediate pick response
• Clear note onset
• Precise rhythmic articulation
• Fast player feedback
• Strong definition under compression

This can be especially useful for:

• Palm-muted playing
• Fast alternate picking
• Percussive technique
• Complex chord work
• Low tunings
• High-gain amplification

Controlled Low End

KMS titanium hardware is designed to retain low-frequency authority while improving definition.

The intended direction is:

• Tight low strings
• Clearer palm-muted notes
• Better separation between pitches
• Reduced perceived blur
• More controlled decay

Controlled does not mean reduced.

It means that the low end remains easier to distinguish and use.

Note Separation

Strong string-to-string definition is a central KMS titanium characteristic.

This can help preserve detail in:

• Dense chords
• High-gain sounds
• Extended-range instruments
• Low tunings
• Layered arrangements
• Sustained notes

The audible result still depends on:

• Guitar construction
• Pickups
• Amplification
• Strings
• Setup
• Player technique

The bridge material is one part of the complete instrument.

Sustain and Decay

Sustain should not be evaluated only by stopwatch duration.

The quality of the decay also matters.

KMS uses Grade 5 titanium to pursue a decay that remains:

• Even
• Defined
• Harmonically readable
• Controlled in the low frequencies
• Responsive to playing dynamics

A long note that loses definition is not the same result as a long note that remains musically structured.

Dynamic Response

The KMS titanium direction preserves changes in player input.

This includes:

• Light attack
• Hard attack
• Palm muting
• Pick-angle changes
• Harmonics
• Vibrato
• Controlled feedback

The target is a bridge that responds directly without adding mechanical instability.

High-Gain Applications

High gain increases:

• Compression
• Harmonic density
• Low-frequency masking
• Sensitivity to uncontrolled transients

The KMS Grade 5 direction is particularly useful where the guitar must retain:

• Tight rhythm response
• Clear pick definition
• Chord separation
• Controlled bass
• Stable low tuning
• Precise articulation

Clean and Low-Gain Applications

The same material direction can support clean playing through:

• Detailed note onset
• Strong dynamic contrast
• Clear chord structure
• Open string-to-string separation
• Even decay
• Immediate playing feedback

Titanium is not limited to modern metal or high-gain instruments.

Its usefulness depends on the musical result the player wants.

Material Comparisons

Grade 5 vs. Grade 2 in Guitar Hardware

Grade 2 may be appropriate when the component requires:

• Extensive forming
• Greater room-temperature ductility
• Sheet-metal construction
• Moderate mechanical strength
• Excellent general corrosion resistance
• Lower structural loading

Grade 5 is preferable when the component requires:

• High strength in a compact size
• Greater resistance to permanent deformation
• Highly loaded threads
• Stable precision-machined geometry
• Repeated mechanical loading
• Strong strength-to-weight performance

Neither grade is universally better.

The application determines the correct choice.

For the core of KMS precision-machined bridge hardware, that application points to Grade 5.

Grade 5 vs. Steel

Compared with steel, Grade 5 generally provides:

• Much lower density
• Lower weight at equal dimensions
• Lower elastic stiffness at equal geometry
• Excellent strength-to-weight ratio
• Strong corrosion resistance
• No conventional rusting requirement
• Different mass and vibration behavior

Steel remains valuable where the design requires:

• Greater elastic stiffness at compact geometry
• Traditional material response
• Specific wear surfaces
• High-strength, cost-effective fasteners
• Particular magnetic or mechanical properties

KMS uses materials according to component function rather than replacing every metal with titanium.

Grade 5 vs. Stainless Steel

Compared with common stainless steels, Grade 5 offers:

• Lower density
• Lower component weight
• High strength-to-weight performance
• Different elastic and mass behavior
• Excellent atmospheric corrosion resistance

Stainless steel can provide:

• Greater stiffness at equal geometry
• Good wear behavior in selected pairings
• Established thread and stud applications
• A different tonal and mechanical character

Material choice should follow the function of the complete bridge.

Grade 5 vs. Brass

Compared with brass, Grade 5 is:

• Substantially lighter
• Mechanically stronger in common structural conditions
• More resistant to permanent deformation
• Different in mass distribution and response

KMS uses brass when the intended result calls for:

• More body
• Greater perceived weight
• Strong low-mid authority
• Dense sustain
• Substantial fundamental response

Grade 5 titanium is selected when the intended result calls for:

• Faster attack
• Greater separation
• Lower moving mass
• Controlled bass
• Direct dynamics

These are different design choices, not a universal quality ranking.

Grade 5 vs. ZAMAK

ZAMAK is a family of zinc-based die-casting alloys.

It is fundamentally different from Grade 5 titanium in:

• Density
• Strength
• Manufacturing process
• Typical geometry
• Historical application
• Tonal direction

KMS uses precision-machined Grade 5 titanium for structurally demanding modern hardware.

KMS uses vacuum die-cast and CNC-machined ZAMAK in Vintage ONE to preserve the material character and construction principle associated with vintage Tune-O-Matic bridges.

The two materials serve different products and musical goals.

Low Weight Is Not the Only Objective

A lighter bridge is not automatically better.

A heavier bridge is not automatically better.

Mass influences:

• Inertia
• Resonance
• Tremolo feel
• Attack
• Decay
• Player feedback

But mass does not act alone.

The result depends on:

• Material
• Stiffness
• Geometry
• Contact
• Mounting
• Distribution of mass
• Guitar construction

KMS uses Grade 5 to create a particular combination of low mass, high strength and precise geometry.

KMS Application

Direct Contact and Reduced Interfaces

KMS designs selected assemblies with direct, defined component contact.

Reducing unnecessary intermediate parts can:

• Reduce potential mechanical play
• Simplify the force path
• Improve assembly consistency
• Preserve defined geometry
• Reduce the number of moving interfaces

This does not mean that every possible titanium surface should slide directly against another titanium surface.

Direct static contact and controlled sliding contact require different engineering solutions.

• The alloy grade alone defines the final sound.

Questions to Ask About Titanium Hardware

When evaluating a titanium component, ask:

• Which titanium grade is used?
• Is the grade documented?
• Is the component machined, cast or formed?
• Was the component designed specifically for that material?
• Which surfaces carry structural load?
• Which surfaces slide or wear?
• Are functional coatings used where required?
• How are the threads produced?
• Does the component match the complete bridge system?
• Is the tonal description based on the complete component or only the alloy name?

The statement made from titanium is only the beginning of the specification.

Why KMS States the Grade

KMS specifies Ti-6Al-4V Grade 5 because the grade provides meaningful technical information.

It explains the material basis for:

• High-strength CNC components
• Compact locking hardware
• Precision saddles
• Tremolo baseplates
• Monolith blocks
• Titanium screws
• Arm-system parts

The grade specification makes the material choice transparent.

Why KMS Uses Grade 5

KMS Grade 5 hardware is built around:

• High structural strength
• Low material density
• Resistance to permanent deformation
• Precise CNC manufacturing
• Defined contact geometry
• Application-specific surfaces
• Stable adjustment
• Long-term mechanical performance

The material supports the product philosophy:

Tone. Performance.

Designed to Sound.

Material Makes Tone

Material properties influence:

• Mass
• Stiffness
• Strength
• Contact behavior
• Damping
• Wear
• Component geometry

These properties affect how a bridge behaves as part of the guitar.

However, material does not work independently from design.

The final result comes from:

• Material
• Manufacturing
• Geometry
• Surface
• Mounting
• Setup
• Guitar

Material makes tone.

Manufacturing creates precision.

The surface defines function.

Related Guides

• How Guitar Bridge Material Affects Tone →
• CNC Precision in Guitar Bridge Manufacturing →
• Choosing Guitar Saddle Materials →
• 7075 Aluminum in Guitar Hardware →
• Decorative Finishes vs. Functional Coatings →