0.470" hole diameter 0.740" outside diameter 0.190" material thickness navy special project 40 deg countersink on flat side cadmium surface treated convex
1.031" hole diameter 1.812" outside diameter 0.500" material thickness 1.438 in. diaby 0.250in. deep counterbore on beveled side; 0.312 in. wd by 0.156 in. deep slot on face convex