Used on scuttle marine 12 inch scuttle marine 21 inch and scuttle marine 25 inch. 3a thread class right-hand 16 thread quantity per inch screw machine material is brass unc thread series
Used on 7386379(53711) tow sheave assembly. ring (navy) type-external; bore dia.-0.5000; groove dia.-0.4680; ring free dia.-0.4640; thickness-0.0350; material-a-286 stainless steel
Used on trailer mounted support system tmss -medium pu-821/t, pu-822a/t. 2a thread class right-hand 0.625" thread length pan no. 2 unable to decode 32 thread quantity per inch back-oxide 18-8 s/s pan head phillips machine screw oxide screw surface treated unc thread series