2a nut thread a thread class right-hand nut thread a 0.400" nut thread a thread length 3.250" overall length 24 nut thread b thread quantity per inch zinc surface treated unf nut thread a thread series
2a thread class right-hand 1.440" thread length 2.367" overall length 24 thread quantity per inch hole in shank 2.155 in. nom lg from head; hole 0.066 in. min, 0.071 in. max dia passivate surface treated round, closed unf thread series
3a thread class right-hand 0.255" grip length 32 thread quantity per inch 95000 single pounds per square inch shear strength cadmium surface treated unjc thread series
3a thread class right-hand 0.340" thread length flat countersunk head style 0.115" grip length 32 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.313" thread length round head style 0.365" grip length 32 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.288" thread length hexagon head style 0.052" grip length 32 thread quantity per inch locking feature is plastic polyamide passivate fastener surface treated unf thread series