4131-61 4131-61B 1/2-13UNC 4131-1A1 4131-1A1B 1-12UNF 4131-2A2 – No. 6-40UNF 4131-62 – 1/2-20UNF 4131-1A2 – 1-14UNS 4131-2A514 – No. 8-32UNC 4131-81 4131-81B 1/2-28UNEF 4131-1A3 – 1-32UN 4131-2A532 – No. 8-36UNF 4131-82 – 9/16-12UNC 4131-9D1 4131-9D1B 1 1/16-12UN 4131-1E512 – No. 10-24UNC 4131-101 – 9/16-18UNF 4131-9D2 4131-9D2B 1 1/8-7UNC 4131-1F1 4131-1F1B No. 10-32UNF 4131-102 4131-102B 9/16-2
