Compare Maximum number of 4 items selected Mr. Gasket Head Bolt Washer - 87A Part #: 87A Line: MRG Mr. Gasket Head Bolt Washer 90 Day Limited Warranty Material: Steel Inside Diameter (in): 1/2 Inch Inside Diameter (mm): 13mm Outside Diameter (in): 7/8 Inch Thickness (in): 1/8 Inch Color/Finish: Black, Oxide Show More Show Less