Pneuflex SPOC 12-G03, 12mm tube with BSPP, G 3/8 thread hex socket head male connector stainless steel metric air fittings with O-ring thread seal, is a round body shaped pneumatic fittings with internal hexagon, which can be installed in the closely space and tightened by a hex wrench. Male connector stainless steel push in fittings is good for avoiding corrosion and effective work in acidic environment, common be in the food industry or other industry such as medical & pharmaceutical, which can transfer steam, water, oil and corrosive fluids, available used with a variety of tube material such as nylon, PU, PE, PA, Teflon.