2a thread class right-hand 0.420" thread length flat countersunk head style 40 thread quantity per inch oxide screw surface treated thd fully to base of head unc thread series
3a thread class right-hand 0.740" grip length 28 thread quantity per inch 108000 single pounds per square inch shear strength cadmium surface treated unjf thread series
3a thread class right-hand 0.922" thread length hexagon head style 6.546" grip length 18 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.359" thread length flat chamfer head style 18 thread quantity per inch passivate fastener surface treated unrc thread series
3a thread class right-hand 0.311" thread length crowned hexagon head style 1.125" grip length 24 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.506" thread length flat countersunk head style 24 thread quantity per inch furnish one o-ring cadmium surface treated unf thread series
3a thread class right-hand 0.285" thread length 32 thread quantity per inch navy special project 2 0.049 in. radius cutouts on sides of head passivate surface treated unf thread series
2a thread class right-hand 0.214" thread length flat chamfer head style 40 thread quantity per inch navy special project nickel screw surface treated unc thread series
2a thread class right-hand 0.468" thread length knurled no. 1 head style 24 thread quantity per inch thd interrupted 0.966 in. from bearing surface of head passivate surface treated unc thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.219" grip length double shear strength 3355 lb cadmium body surface treated
3a thread class right-hand 0.983" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unjf thread series
