Envy Clamp Bolt is made of steel and replaces lost or stripped bolts for Envy Clamps. The Envy Clamp Bolt is available in 20mm and 25mm lengths. The 20mm replacement bolt is the best size for Envy's Double Clamps while the 25mm version is better suited for they quad clamps. These bolts will work fine with most other brand clamps that fit 6mm bolts. Please double check the length of your clamp bolt before purchasing.This Envy Clamp Bolt is designed to be tightened with a size 6 Allen key making stripping the bolt nearly impossible. Sold Individually, this replacement clamp bolt for Envy clamps is the a very important component. Is it bad to use a scooter clamp that is missing bolts? Yes, It is! Don't do it as your bars are 75% more likely to come off while riding. Whether you are replacing a worn-out bolt, lost clamp bolt or just need a spare, the Envy Clamp Bolt is the right choice.