Retainer washer used on trapezoidal screws and self-drilling (Buldex) screws; in the electrical panel sector, it prevents the curtain sheet part on the panel cover from falling back. Used together with plastic head bolts.
Retainer washer used on trapezoidal screws and self-drilling (Buldex) screws; in the electrical panel sector, it prevents the curtain sheet part on the panel cover from falling back. Used together with plastic head bolts.