2a thread class left-hand 0.312" thread length knurled no. 1 head style 20 thread quantity per inch navy special project drilled oxide surface treated unc thread series
2a thread class right-hand 2.822" thread length knurled no. 1 head style 18 thread quantity per inch navy special project point has 10-32 thd, 0.198 in. min., 0.218 in. max lg anodize surface treated unc thread series
2a thread class right-hand 1.000" thread length knurled no. 1 head style 24 thread quantity per inch aluminum head oxide film head surface treated unf thread series
2a thread class right-hand 3.062" thread length knurled no. 1 head style 13 thread quantity per inch furnished with 1 steel spring cadmium surface treated unc thread series
2a thread class right-hand 0.438" thread length knurled no. 2 head style 20 thread quantity per inch head under cut to 7/16 in. dia by 3/64 in. lg, 1/2 in. dia by 3/64 in. thk washer face ob base of head nickel surface treated unc thread series
2a thread class right-hand 0.750" thread length thumb no. 3 head style 20 thread quantity per inch 3/32" diameter by approximately 5/32" deep axial hole in shank cadmium surface treated unc thread series