Bolts & Nuts for Shimano FSA Sram Bike Crankset Chainring

Size: screw length x nut length x width

Material: ultra-high strength chromium molybdenum steel

Specification: Bolt nut head dia. 12mm, Nut shaft dia. 9.8mm.

Selection concave width: 3.8 mm, 4.8mm, 5.8mm, 6.8mm, 8.8mm, 10mm.

Packing quantity: 5 x pair lock screw

Please select variations

Please check our store for other sizes. If you cannot find what you need in the store, please do not hesitate to contact us at anytime.