【High-Strength Steel Construction】The bike hex crank arm fixing bolts are crafted from premium steel; these bolts maintain structural integrity under heavy cycling stress. The reinforced material prevents stripping, deformation and ensures reliable long-term performance.
【Precision M8 Metric Dimensions】The bike crank bolts are designed with exact 8mm threading, 0.83" diameter, and 1.06" total length for perfect compatibility with square taper bottom brackets. The standardized sizing guarantees secure fitting without play or misalignment issues.
【Integrated Dust Protection System】Each bicycle crank screw features a built-in plastic cap that creates a waterproof seal. This dual-function design prevents the bottom bracket while providing anti-vibration performance.
【User-Friendly Installation and Security】The bike crankset bolt's Blue anti-slip coating ensures tool grip and prevents accidental loosening from vibrations. Simple installation requires only an 8mm Allen key - normal tools or technical expertise needed for secure crank attachment.
【8-Piece Universal Compatibility Kit】Includes 8 bicycle bottom bracket axle bolts sufficient for multiple bikes or future repairs. Compatible with most square taper cranksets and bottom brackets, making them ideal for road bikes, mountain bikes, and commuter bicycles.
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