Ext TthLk 1/4 in Brnz 0.51x0.028in 100PK

Lock Washer Lock Washer Type External Tooth Lock Finish Plain Material Phosphor Bronze For Screw Size 1/4 in Inside Diameter 0.267 in Outside Diameter 0.51 in Maximum Thickness 0.028 in Color Bronze Dimensional Standards ASME B18.21.1 For Use With Large Round Pan or Binding Head Screws Material Grade/Class Not Graded Pack Size Small Pack Rockwell Hardness B90 System of Measurement Inch Thickness Tolerance 0.023 in to 0.028 in Package Quantity 100