When used in conjunction with the pre-installed washers supplied on our screws, these black nylon shoulder washers will electrically isolate the equipment from the rackrails to help prevent ground
loops. 100 piece count. NOTE:
not for use with HPQ, HP-6MM
The SW Shoulder Washers (100 pieces) from Middle Atlantic is a pack of (100) black nylon shoulder washers that help prevent ground
loops. They are designed for used with the stock washers supplied with all Middle Atlantic screws.