67.5 degree grease nipple material:mild steel,stainless steel,brass Plating:zinc,nickel,chrome thread:npt... ... , as well as button head nipples.grease nipple,fittingsemi trailer parts 1 We can provide ISO, BSP, DIN, ... .2 This prouducts are used in auto parts(car, trailer, and truck),marine engineering mechanism,mechanical equipment and so ... much. brass durable grease coupler, grease fittings for trailer