2a thread class right-hand 0.120" thread length flat chamfer head style 56 thread quantity per inch depth of socket 0.090 in. min passivate surface treated unc thread series
3a thread class right-hand 1.254" thread length double hexagon w/hole head style 14 thread quantity per inch surface finish on shank cadmium surface treated concentric hole unthreaded unjf thread series
3a thread class right-hand 0.708" thread length spline drive shear head head style 1.552" grip length 20 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand flush countersunk head style 0.376" grip length 32 thread quantity per inch 156000 single pounds per square inch shear strength nickel surface treated unjc thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 49000 single pounds per square inch shear strength cadmium surface treated
2a thread class right-hand pan head style 32 thread quantity per inch furnished with insertable terminal; inside dia 0.041 in min; outside dia 0.066 in max; used with 20-24 awg wire passivate fastener surface treated unc thread series
3a thread class right-hand 1.250" thread length flat chamfer head style 16 thread quantity per inch knurled head optional ceramic surface treated unc thread series
3a thread class right-hand 0.400" thread length dished hexagon head style 0.990" grip length 28 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 1.000" thread length hexagon head style 0.060" hole diameter 24 thread quantity per inch bearing surface of head, grip nickel surface treated unjf thread series
