These banjo fittings come complete with banjo bolt and crush washers. They suit oil feed lines on the DPR and Kinugawa T3, T3T4, GT30 and GT35 turbos as well as many other common turbos on the market. The banjo bolt is M12x1.5 and the fitting takes a DASH4 connector.
315-02101-012

DPR T3T4 turbo oil return flange (hose tail)
Turbo oil and water line kit Nissan S15 T28 BB Kinugawa (Top Mount Turbo) 