2a thread class right-hand 0.750" thread length hexagon head style 24 thread quantity per inch wide groove 0.060 in.min 0.064 in max w by 0.839 inmin 0.849 in. max dia enamel surface treated unf thread series
1a thread class right-hand 0.307" thread length hexagon head style 0.070" hole diameter 24 thread quantity per inch nickel surface treated unf thread series
1a thread class right-hand 0.512" thread length hexagon head style 0.070" hole diameter 24 thread quantity per inch nickel surface treated unf thread series
1a thread class right-hand 0.572" thread length hexagon head style 0.062" hole diameter 28 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.328" thread length flat countersunk undercut head style 28 thread quantity per inch cadmium threads surface treated unf thread series
3a nut thread thread class right-hand nut thread 0.500" nut thread thread length 3.438" overall length 16 stud thread thread quantity per inch 0.290 in. dia 0.125 in. wide thd relief on stud end at shoulder shouldered unc nut thread thread series
3a thread class right-hand 1.578" thread length hexagon head style 0.500" grip length 24 thread quantity per inch cadmium surface treated unf thread series
2a thread class right-hand 0.407" thread length hexagon head style 0.400" grip length 32 thread quantity per inch identification disk on top of head 0.330 in. dia, 0.030 in. depth cadmium surface treated unf thread series
