Description: Lock washers are for Cast Iron, Steel and etc. Aluminum really only needs Flange Bolts. If you want to muck up the finish you can use Flange Bolts with Inner Flange Cut Retention Grooves.
Lock washers are for Cast Iron, Steel and etc. Aluminum really only needs Flange Bolts. If you want to muck up the finish you can use Flange Bolts with Inner Flange Cut Retention Grooves.
