Chain adjuster nut and bolt assembly from Bolt Hardware includes Class 8 zinc-plated steel M8x50mm hex head bolts (x2) with a 10mm A/F, and M8 flange nuts (x2) with a 12mm A/F (hex). Fit all chain adjusters that use an 8mm bolt (most off-road and street models) user our fitment guide/Parts Finder to confirm suitability for your model. Bolt hardware meets or exceeds OEM specs and is proudly produced in the USA. Specifications: 2x M8x50mm hex head boltsmeasuring 10mm A/F 2x M8 flange nutsmeasuring 12mm A/F (hex)