... & Groove Couplings Size:1/2"-6" Thread:NPT ,BSPP Basic design:DIN2828,MIL-C-27487 Type:A,B,C,D,E ... levers. 6.Pins,Rings and Safety clips We use stainless steel pins,steel plated rings and safety clips.(Note:Safety clipsare only available ... .productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); Our factory offer investment casting high quality Stainless Steel 316 Cam & Groove Couplings