3a thread class right-hand 1.312" thread length undercut pan no. 2 head style 12 thread quantity per inch navy special project kgroove 0.281 in. wide by 0.218 in. deep extends full height of head, thread end of bolt has diameter of 1.000 in. by 0.250 in. lg; two slots 0.199 in. wide by 0.281 in. depth on thread end slots 67-1/2 deg apart phosphate surface treated unf thread series
3a thread class right-hand 3.500" thread length 18 thread quantity per inch furnished point of hook chamfered 0.250 in. lg to 0.200 in. dia on end zinc surface treated off-set round bend unc thread series
3a thread class right-hand 0.750" thread length 3.984" overall length 20 thread quantity per inch concentric hole 0.181 in. min, 0.187 in. max dia drilled thread end 2.437 in. min, 2.500 in. max deep cadmium surface treated round, closed w/shoulder unjf thread series
3a thread class right-hand 0.172" thread length flat chamfer head style 0.033" hole diameter 32 thread quantity per inch passivate surface treated unc thread series