2a thread class right-hand 2.000" thread length hexagon head style 14 thread quantity per inch concentric hole from head end 0.378 in. dia 0.340 in. depth concentric hole unthreaded uns thread series
3a thread class right-hand 0.400" thread length pan no. 2 head style 0.615" grip length 28 thread quantity per inch cadmium fastener surface treated unjf thread series
3a thread class right-hand 0.395" thread length pan no. 2 head style 0.110" grip length 28 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.563" thread length flat chamfer head style 32 thread quantity per inch navy special project zinc surface treated unf thread series
3a thread class right-hand 0.250" thread length flat countersunk head style 0.428" grip length 32 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 1.006" thread length double hexagon head style 5.678" grip length 20 thread quantity per inch navy special project cadmium surface treated unjf thread series
3a thread class right-hand 0.251" thread length pan head style 0.552" grip length 32 thread quantity per inch cadmium surface treated unjc thread series
3a thread class right-hand 0.656" thread length round w/wrench flats head style 24 thread quantity per inch 0.188 in. chamfer on head parallel to flat unf thread series
Used on spec item. 3a thread class right-hand 0.454" thread length hexagon head style 0.070" hole diameter 0.088" grip length 24 thread quantity per inch unjf thread series
3a thread class right-hand 0.250" thread length flat countersunk head style 0.802" grip length 32 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.224" thread length flat chamfer head style 56 thread quantity per inch passivate screw surface treated thd relieved groove 0.031 in. wide by 0.067 in. min, 0.072 in. max dia, head offset from centerline of longitudinal axis 0.013 in. min, 0.015 in. max unf thread series
3a thread class right-hand 0.375" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unc thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.384" grip length 785 single pounds per square inch shear strength chromate body surface treated
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.254" grip length 495 single pounds per square inch shear strength oxide film stem surface treated
