Pneuflex's model of SPOC 08-02 is 8mm tubing x R, PT, BSPT 1/4 thread hex socket head male straight stainless steel push to connect fittings, round shaped body with hexagon socket, designed to connect pneumatic tubing of 8mm diameter to R 1/4 female thread in where the installation space is limited. 8mm x R 1/4 stainless steel round male straight push in fittings are made entirely of high grade stainless steel, making it supportive used in food or other aggressive environment.