Switcraft D4F female receptacle for panel or chassis mounting. Flange has two .136" (3.45 mm) diameter countersunk holes for #5-40 flat head mounting screws (not supplied). Mounts from front of panel or chassis in .953" (24.21 mm) diameter hole. Series D(*)F has standard latchlock; Series D(*)FD has FAS-DISCONNECT detent. Satin nickel finish (Series D*F and D*FD) and "Black-Velvet" finish (Series D*FBAU).