3/4' STAINLESS STEEL HEX NUT connector) square 1.Specifications:1/8"- 2-1/2" 2.Material:SS304,316. 3.Working Temp:-30 ... -120. 3/4' STAINLESS STEEL HEX NUT connector) square1. Precision ... cone,inner cone,welding nipple,nut,ball 3.Specifications: 1/4,3/8,1/2,3/4,1,1 1/4,11/2 ...