Product Description

Upgrade your Shimano 12-speed MTB drivetrain with a precision-engineered titanium fixing screw from S-PARTS. Designed for Shimano Deore XT M8100 and SLX M7100 cranksets, this ultra-lightweight M4 x 5.5mm screw replaces stock hardware with premium aerospace-grade titanium for improved corrosion resistance, exceptional strength, and a refined custom appearance.

Manufactured from carefully selected S-Grade TC4 Titanium (Ti-6Al-4V / ASTM Grade 5), each screw is CNC machined to precise tolerances and weighs only approximately 0.47g. Whether you're building an ultra-light XC race bike, upgrading a trail machine, or simply replacing worn hardware, this titanium upgrade delivers performance, durability, and style in one compact component.

Features

Precision Fit for Shimano 12-Speed MTB Cranksets

Designed to fit Shimano 12-speed mountain bike cranksets including:

• Shimano Deore XT M8100
• Shimano SLX M7100

Engineered as a direct replacement for the original M4 fixing screw used on compatible crankset assemblies.

S-Grade TC4 Titanium Construction

Unlike standard titanium hardware, S-PARTS uses carefully selected S-Grade TC4 Titanium material for superior mechanical performance.

Benefits include:

• Average tensile strength exceeding 1050 MPa
• Significantly higher than the industry standard of 895 MPa
• Excellent corrosion resistance
• Outstanding fatigue resistance
• Approximately 45% lighter than comparable steel fasteners

Under comparable conditions, the overall mechanical performance is similar to Class 10.9 steel fasteners while delivering substantial weight savings.

Ultra-Light Performance

At only approximately 0.47g per piece, this screw is ideal for:

• Weight-conscious XC race builds
• Trail and Enduro bikes
• Premium custom bike projects
• Titanium hardware upgrade kits

Premium Surface Finishes

PVD Vacuum Nitride Coating

Available in:

• Gold
• Black
• Blue
• Oil Slick (Rainbow)

The coating penetrates the metal surface, producing vivid colors with excellent wear resistance and long-term durability.

Anodic Oxidation Finish

Available in:

• Green
• Purple
• Candy Color
• Indigo
• Natural Titanium

Provides a distinctive custom appearance while maintaining the natural benefits of titanium.

Specifications

Tech & Installation Notes

• Recommended Torque: 1.5–2.0 N·m
• Do not over-tighten.
• Use a high-quality T20 Torx tool to avoid tool slippage.
• Anti-seize lubricant or medium-strength threadlocker (Blue Loctite) is recommended before installation.
• Always verify dimensions against the original hardware before ordering.

Compatibility

Compatible with Shimano 12-speed MTB cranksets including:

• Shimano Deore XT FC-M8100
• Shimano SLX FC-M7100

Please compare the dimensions of your original screw before purchase to ensure proper fitment.

Package Includes

• 1 × S-PARTS Titanium M4 x 5.5mm Chainring Fixing Screw