UNC 4121-1A1 4121-1A1N 1-8UNC 4121-2A1 4121-2A1N No. 10-32UNF 4121-102 4121-102N 1/2-20UNF 4121-1A2 4121-1A2N 1-12UNF 4121-2A2 4121-2A2N No. 12-24UNC 4121-121 4121-121N 1/2-28UNEF 4121-1A3 4121-1A3N 1-14UNS 4121-2A514 4121-2A514N No. 12-28UNF 4121-122 4121-122N 9/16-12UNC 4121-9D1 4121-9D1N 1-32UN 4121-2A532 4121-2A532N 1/4-20UNC 4121-1B1 4121-1B1N 9/16-18UNF 4121-9D2 4121-9D2N 1 1/8-7UNC 4121-1F1
