M8 × 1.25 hex-socket bolt with a listed shoulder-shank profile. This Tianswer fastener is listed in Grade 5 Ti-6Al-4V (TC4) titanium alloy with six length options. Disc-brake applications require more than a matching thread: compare the original shoulder and seating geometry before ordering.
Specifications
Thread: M8 × 1.25 mm
Lengths: 20, 22, 25, 30, 35 and 40 mm
Head diameter: 16 mm; head height: 3 mm
Unthreaded shank diameter: 10 mm
Listed shoulder height: 5 mm for 20 mm length; 7 mm for 22, 25 and 30 mm; 10 mm for 35 and 40 mm
Drive: 6 mm hex key
Colors: titanium, gold, rainbow, burn blue and black
Sold individually
Brake fitment
Compare the exact rotor, hub and original bolt's thread, shoulder height, head seat and length. A Suzuki or Yamaha name in the listing does not establish model-specific approval. Use the brake-component manufacturer's approved hardware and tightening instructions, and have the assembly checked before riding. For an engineering teardown on fatigue resistance and shear analysis, read our guide on Rolled vs. Cut Threads & Shear Analysis.
FAQ
Is an M8 × 1.25 thread enough to confirm fit? No. Shoulder dimensions and seating are also critical.
