Ground joint coupling / Steam hose coupling Available sizes: 3/4", 1/2", 1", 1-1/4", 1-1/2", 2" 1. Parts:Complete set (female stem, wing nut and female spud)Female stem with long shanks for interlocking clampsWing nutFemale spudMale stem with long shanks for interlocking clamps 2. Body material:zinc plated carton steel 3.Sealing:Viton, NBR 4.Thread type:BSP, NPT, NPSM