Pneuflex's model of SPOC 08-03 is 8mm tubing x R, PT, BSPT 3/8 thread hex socket head male straight stainless steel push to connect fittings, round shaped body with hexagon socket which allows tightening with a hexagon wrench in confined space. 8mm x R 3/8 stainless steel round male straight push in fittings are constructed of high grade stainless steel, making it suitable for not only chemical-involved applications, but also for high temperature and high pressure environments.