A broad flat umbrella head with an internal hex drive. This Tianswer M8 × 1.25 bolt is listed in Grade 5 Ti-6Al-4V (TC4) titanium alloy and comes in seven lengths. Choose by thread, head seating and clearance requirements, not by the word disc brake alone.
Specifications
Thread: M8 × 1.25 mm
Lengths: 10, 15, 20, 25, 30, 35 and 40 mm
Head diameter: 16 mm; head height: 5 mm
Drive: 6 mm hex key
Listed colors: titanium, gold, rainbow, burn blue and black
Price is for one bolt
Fitment and installation
Compare the original bolt's length, pitch, bearing surface and head clearance. Check the required thread engagement and any difference in shank or thread configuration for the chosen length. Brake assemblies are safety-critical: confirm the component manufacturer's approved fastener and tightening procedure before replacing original hardware. For an engineering teardown on fatigue resistance and shear analysis, read our guide on Rolled vs. Cut Threads & Shear Analysis.
FAQ
Does M8 × 1.25 confirm disc-brake compatibility? No. The mounting interface and approved fastener specification must also match.
