3a thread class right-hand 0.620" thread length hexagon head style 0.047" hole diameter 0.248" grip length 32 thread quantity per inch unjf thread series
3a thread class right-hand flush countersunk head style 0.570" grip length 24 thread quantity per inch 115000 single pounds per square inch shear strength unjf thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 41000 single pounds per square inch shear strength anodize surface treated
2a thread class right-hand 0.750" thread length hexagon head style 24 thread quantity per inch screw, machine, hexagon head with spring lockwasher, class 2a. cadmium or zinc surface treated unc thread series
3a thread class right-hand flush countersunk head style 0.750" grip length 24 thread quantity per inch 14600 double pounds per square inch shear strength thread modified unjf thread series
3a thread class right-hand flush countersunk head style 0.375" grip length 28 thread quantity per inch 14600 double pounds per square inch shear strength thread modified unjf thread series
3a thread class right-hand 0.528" thread length dished hexagon head style 24 thread quantity per inch three 0.075 in. dia holes placed in head within 0.010 of center of hex flats cadmium surface treated unjf thread series
