Catalogue number: LM421 Features: ●The 12-sided is easy to insert, making it easy to work with. Specifications: ●Face size (mm): 21 ●Drive socket size (mm): 12.7 ●Total length (mm): 39 ●Face shape: 12-sided ●Color: Silver ●Face (mm): 21 Material/Finish: ●Special steel Caution: ●Use the correct size for the bolt and nut. ●Insert the bolt and nut all the way in. ●Do not hit with a hammer or apply shock. ●Do not use with power tools such as an impact wrench.
