flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.781" grip length 3450 single pounds per square inch shear strength cadmium bolt surface treated
2a thread class right-hand 1.580" thread length pan head style 40 thread quantity per inch navy special project passivate screw surface treated unc thread series
2a thread class right-hand 0.082" thread length flat countersunk head style 64 thread quantity per inch passivate screw surface treated unc thread series
3a thread class right-hand 0.475" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unjc thread series
3a thread class right-hand 0.486" thread length dished hexagon head style 0.740" grip length 18 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.820" thread length hexagon head style 12 thread quantity per inch passivate surface treated concentric hole unthreaded unjf thread series
2a nut thread thread class right-hand nut thread 1.058" stud thread thread length 5.440" overall length 11 stud thread thread quantity per inch 0.125 in. dia hole with 18 n-ptf threads through full length recessed unc stud thread thread series
2a stud thread thread class right-hand nut thread 1.058" stud thread thread length 6.440" overall length 11 stud thread thread quantity per inch 0.125 in. dia hole with 118 n-ptf threads through full length recessed unc stud thread thread series
3a thread class right-hand 0.942" grip length 20 thread quantity per inch 95000 single pounds per square inch shear strength cadmium surface treated unjf thread series
universal head style 0.126" grip length 1090 single pounds per square inch shear strength self-locking anodize sleeve or chromate sleeve surface treated
