N420-4 EG UNC1/2-13 3B
N420-4 EG UNC3/8-16 3B
N420-4 EG UNF1/2-20 3B
N420-4 EG UNF3/8-24 3B
N420-4 G1
N420-4 G1 1/2
N420-4 G1 1/4
N420-4 G1/16
N420-4 G1/2
N420-4 G1/4