Washer & disc

Part NO.SizeHole Dia
A-12(H) out side dia.1/2" 3.6mm
A-20(H) out side dia.3/4" 3.6mm(3/16")
A-22(H) out side dia.7/8" 3/16"
A-25(H) out side dia.1" 3.6m

Applications

Use washer to avoid the fastener over drive or penertration of the fstener and increase the pull-out strength.