BS 2779 1986 Edition, August 29, 1986
Pipe Threads for Tubes and Fittings Where Pressure-Tight Joints Are Not Made on the Threads (Metric Dimensions)
Additional Comments: W/D S/S BY BS EN ISO 228-1 AND BS EN ISO 228-2
Published By:British Standards Institution (BSI)
Designation and dimensions for Whitworth form fastening pipe threads of sizes 1⁄16 to 6 inclusive. Includes appendices for recommended gauging systems.