1 INCH High Collar Split Lock Washer Plain (Pack Qty 650) BC-100WSH

Designed for use with smaller head screws, particularly sockets. Performs comparably to a regular split lock washer as a greater thickness compensates for smaller outside diameter Carbon Steel: SAE J403 1055 - 1065. Stainless: SAE J405 302-305 Carbon Steel: Rockwell C38 - 46. Stainless: Rockwell C35 - 43 (thru 5/8” diameter); Rockwell C32 - 43 (diameters over 5/8”)