Model of SPC 06-04 is male connector stainless steel push in fitting which connects a female R, BSPT 1/2 thread to a 6 mm O.D tubing in the same direction. 6 mm tube x R, BSPT 1/2 SUS male straight push in fitting is composed of 316 stainless steel for corrosion resistance, FKM sealing material for chemical-resistance.