Product Description

M5 Grade 5 Titanium Stem Bolts & Sleeve Nuts

Upgrade your bike with precision-machined Grade 5 Titanium (Ti-6Al-4V) hardware from S-PARTS.

Designed for compatible rear-clamp stems, carbon integrated cockpits, and other bicycle components using an M5 sleeve-nut fastening system, these lightweight titanium fasteners combine high strength, low weight, corrosion resistance, and premium finishes.

Available with an M5 titanium sleeve nut and 16 mm, 18 mm, or 20 mm stem bolt options, making it easier to choose the right configuration for your specific component.

Available Options

M5 Titanium Sleeve Nut

• Thread Size: M5
• Height: 10.5 mm
• Outer Diameter: 9 mm
• Weight: Approx. 1.3 g / pc
• Tool: 5 mm Hex Key (H5)

M5 × 16 mm Titanium Stem Bolt with Washer

• Thread Size: M5
• Length: 16 mm
• Weight: Approx. 2.0 g / pc
• Tool: T25 Torx Key

M5 × 18 mm Titanium Stem Bolt with Washer

• Thread Size: M5
• Length: 18 mm
• Weight: Approx. 2.1 g / pc
• Tool: T25 Torx Key

M5 × 20 mm Titanium Stem Bolt with Washer

• Thread Size: M5
• Length: 20 mm
• Weight: Approx. 2.3 g / pc
• Tool: T25 Torx Key

See It Installed

Designed for a clean and secure fit on compatible rear-clamp stems, carbon integrated cockpits, and other bicycle components.

These installation images show how the titanium sleeve nut and stem bolt work together in a real bicycle application.

Lightweight Titanium. Precision in Every Detail.

Small components can make a significant difference to the overall appearance and weight of a premium bicycle build.

S-PARTS M5 titanium stem bolts and sleeve nuts are designed for riders who pay attention to the details — from weight reduction and material performance to precise fitment and finish quality.

The lightweight titanium construction helps reduce unnecessary hardware weight while adding a distinctive premium look to the cockpit.

Selected Grade 5 Titanium (Ti-6Al-4V)

S-PARTS uses carefully selected Grade 5 Titanium (Ti-6Al-4V) for its performance-oriented bicycle fasteners.

Through long-term material evaluation and strict material selection standards, S-PARTS selects titanium alloy material with an average tensile strength exceeding 1050 MPa.

This is significantly above the conventional ≥895 MPa benchmark for the relevant titanium fastener material standard.

Grade 5 Titanium is widely valued for its excellent combination of strength, low density, and corrosion resistance. Compared with conventional steel hardware, it can provide a significantly higher strength-to-weight ratio while weighing substantially less.

For lightweight bicycle builds, this makes titanium an excellent choice where both performance and appearance matter.

Key Material Advantages

• Grade 5 Titanium (Ti-6Al-4V)
• 1050+ MPa average tensile strength
• Excellent strength-to-weight ratio
• Lightweight construction
• High corrosion resistance
• Durable for demanding riding environments
• Ideal for premium road, MTB, and custom bicycle builds

Built for Performance. Finished for Detail.

Every gram matters. Every detail counts.

S-PARTS titanium hardware combines lightweight performance with carefully controlled machining and premium surface finishes, allowing you to refine both the function and appearance of your bicycle.

Whether installed on a road bike, MTB, gravel bike, or custom lightweight build, these small components provide a subtle but distinctive finishing touch.

Precision-Machined for Reliable Fitment

The bolt heads are formed using dedicated S-PARTS tooling before precision machining.

The fastening components are manufactured using high-precision CNC equipment with strict dimensional and tolerance control.

This manufacturing process helps maintain consistent dimensions, clean thread profiles, and reliable fitment from piece to piece.

From the bolt head to the threads and contact surfaces, every detail is carefully controlled to meet S-PARTS manufacturing standards.

Choose Your Finish

From understated Titanium and Black to vibrant Gold, Rainbow, and Candy Spectrum finishes, choose a color that complements your frame, cockpit, or personal build style.

Available Colors

• Gold
• Rainbow
• Titanium
• Black
• Royal Blue
• Green
• Purple
• Candy Spectrum
• Indigo

Please note that actual colors may vary slightly depending on lighting conditions, photography, and display settings.

Advanced Titanium Surface Finishes

PVD Vacuum Nitriding

Available finishes: Gold, Rainbow, Black, and Royal Blue.

These finishes are produced using a PVD vacuum nitriding process, which forms a dense metallic surface layer on the titanium.

The treatment improves surface hardness and wear resistance while creating rich, vibrant colors.

Unlike conventional painted finishes, the PVD treatment forms a durable surface layer designed to withstand normal use and exposure to changing weather conditions.

Electrochemical Anodized Titanium

Available finishes: Green, Purple, and Candy Spectrum.

These finishes are created through an electrochemical anodizing process that forms an oxide layer on the titanium surface.

No conventional dye is required.

The distinctive color is produced by the interaction between light and the thickness of the oxide layer, creating the vibrant optical effect characteristic of anodized titanium.

The anodized surface also maintains the natural corrosion resistance associated with titanium.

Titanium & Indigo Finishes

Titanium and Indigo are offered as additional finish options.

The appearance of these finishes is shown in the product images. Surface treatment characteristics may vary according to the specific finish and production process.

Candy Spectrum Finish

Due to the nature of electrochemical anodization, each Candy Spectrum piece exhibits a unique, fluid color gradient.

Color distribution and tonal transitions may vary from piece to piece.

This variation is a natural characteristic of the finishing process and means that each Candy Spectrum component has its own individual appearance.

Natural Thread Finish Marks

Minor uncolored or light-colored lines may occasionally be visible around the threaded area.

These are normal contact marks created during the finishing process and do not affect the structural integrity, fitment, or normal use of the component.

Designed for Premium Bicycle Builds

Small hardware can have a surprisingly large visual impact.

The clean lines of titanium, combined with multiple surface finishes, make these fasteners suitable for riders looking to create a lightweight, refined, and personalized bicycle build.

Small Details. Big Difference.

Every component contributes to the character of a carefully built bicycle.

S-PARTS titanium hardware gives you the freedom to combine lightweight material performance with a finish that matches your build.

Why Choose S-PARTS Titanium Hardware?

• Precision-machined Grade 5 Titanium (Ti-6Al-4V)
• Average tensile strength exceeding 1050 MPa
• Excellent strength-to-weight ratio
• Lightweight construction
• High corrosion resistance
• M5 titanium sleeve nut option
• M5 × 16 mm, 18 mm, and 20 mm stem bolt options
• Washer included with stem bolt variants
• 5 mm Hex Key installation for sleeve nut
• T25 Torx installation for stem bolts
• Multiple PVD and anodized finishes
• Designed for compatible road bike and MTB components
• Ideal for premium and custom bicycle builds

Specifications

Option	Thread Size	Dimensions	Weight	Tool
Titanium Sleeve Nut	M5	H10.5 × Ø9 mm	Approx. 1.3 g / pc	5 mm Hex Key (H5)
Titanium Stem Bolt + Washer	M5 × 16 mm	L16 mm	Approx. 2.0 g / pc	T25 Torx
Titanium Stem Bolt + Washer	M5 × 18 mm	L18 mm	Approx. 2.1 g / pc	T25 Torx
Titanium Stem Bolt + Washer	M5 × 20 mm	L20 mm	Approx. 2.3 g / pc	T25 Torx

Material: Grade 5 Titanium (Ti-6Al-4V)

Colors: Gold, Rainbow, Titanium, Black, Royal Blue, Green, Purple, Candy Spectrum, Indigo

Installation Notes

Before installation, confirm:

1. The component uses an M5 fastening system.

2. The sleeve nut dimensions are compatible with your component.

3. The selected bolt length provides sufficient thread engagement.

4. The bolt does not bottom out before the component is fully clamped.

5. The component manufacturer's recommended torque specification is followed.

For carbon fiber components, always follow the component manufacturer's torque specifications and use an appropriate calibrated torque wrench.

Package Contents

The contents depend on the selected product variant.

Please select the required configuration and bolt length from the available product options before placing your order.