3a thread class right-hand 0.363" thread length flat countersunk head style 0.115" grip length 32 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand flat chamfer head style 24 thread quantity per inch screw, cap, socket head self locking 1960 series locking patch is non-metallic iaw mil-f-18240; prevailing zinc fastener surface treated unc thread series
3a thread class right-hand flat chamfer head style 20 thread quantity per inch capscrew, socket head self locking 1936 series locking patch is non-metallic iaw mil-f-18240; prevailing zinc fastener surface treated unc thread series
3a thread class right-hand flat countersunk head style 20 thread quantity per inch screw, cap, hex, socket, flat countersunk head zinc surface treated unc thread series
3a thread class right-hand flat chamfer head style 16 thread quantity per inch screw, cap, socket head self-locking 1960 series locking element is non-metallic iaw mil-f-18240; prevailing zinc fastener surface treated unc thread series
3a thread class right-hand flat chamfer head style 18 thread quantity per inch screw, cap, socket head plain 1960 series zinc surface treated unc thread series
3a thread class right-hand 0.438" thread length flat chamfer head style 20 thread quantity per inch screw, shoulder, hex socket, cylinder head zinc surface treated unc thread series