Bike Crank Arm Fixing Bolts M8 Square Taper Bottom Bracket Screws 4 Pack

Heavy-Duty Crankset Security Ensure your drivetrain remains secure and stable with this 4-pack of M8 bicycle crank arm fixing bolts. Specifically designed for square-hole (square taper) cranksets and bottom brackets, these bolts provide the essential clamping force needed to keep your crank arms firmly attached to the axle. Whether you are building a new bike or performing routine maintenance, these high-strength fasteners are a reliable choice for any cyclist.

Integrated Protection & Anti-Loosening Tech Each bolt features an integrated plastic dust cap that acts as a primary seal against the elements. This design prevents water, mud, sand, and road grit from entering the axle interface, protecting your threads from corrosion and seized hardware. Additionally, the bolts come pre-applied with a blue anti-slip thread-locking coating, which provides extra friction to prevent the bolts from vibrating loose during intense rides.

High-Strength Steel Construction Forged from premium-grade steel, these crank bolts are engineered for maximum durability and wear resistance. The anti-corrosion finish ensures long-lasting performance even in wet or humid riding conditions. These are a direct, high-quality replacement for worn or stripped factory bolts, offering the structural integrity required for both mountain and road biking.

Product Features:

4-Piece Value Set: Provides enough hardware for two complete bike cranksets or serves as a vital backup for your workshop.

Weatherproof Design: Integrated caps shield the bolt head and internal threads from moisture and soil damage.

Simple Installation: Designed for a standard 8mm Allen (hex) head wrench, allowing for quick DIY installation and removal.

Universal Square-Hole Fit: Optimized for M8 threaded bottom bracket axles found on a wide range of mountain, road, and commuter bikes.

Specifications:

Material: High-Strength Alloy Steel

Thread Size: M8 (8mm)

Compatibility: Square Taper / Square Hole Bottom Brackets

Installation Tool: 8mm Metric Allen Wrench

Quantity: 4 Bolts per pack

Feature: Integrated Dust Cap & Blue Thread-Lock Coating

Color: Silver Bolt with Black Cap