M6x12 Wide Flange Bolt. Uses extensively on many modern day Dirt Bikes for fastening bodywork panels such as radiator shrouds. These wide head flange bolts dont require a washer making them perfect for mounting plastics on your bike. Forged from High Carbon steel, these class 10.9 zinc Plated bolts look like a yamaha bolt but at a much lower price. These bolts were engineered by fastmetric in conjunction with top rider and mechanics .