SA420-4 M14 4HX
SA420-4 M14 6HX
SA420-4 M16 4HX
SA420-4 UNC1/2-13 2B
SA420-4 UNC5/8-11 2B
SA420-4 UNF(J)1/2-20 3B
SA420-4 UNF(J)5/8-18 3B
SA420-4 UNF(J)7/16-20 3B
SA420-4 UNF(J)9/16-18 3B
SA420-4 UNF1/2-20 2B