Общий каталог Yamawa 2022 - 2023 - страница 1243

29. Basic profile of threads ■Metric Screw Threads (M) ■Unified Screw Threads (UNC, UNF, etc.) Production data Internal Internal Thread Thread External External Thread Thread d1 or D1 d2 or D2 d1 or D1 d2 or D2 d or D d or D Threads per inch ■Whitworth Screw Threads (W) ■Screw Threads for Sewing Machine (SM) Internal Internal Thread Thread External External Thread Thread d1 or D1 d2 or D2 d1 or D1 d2 or D2 d or D d or D D1’ D1’ Threads per inch Threads per inch ■Miniature Screw Threads (S) ■Parallel Pipe Threads (G,PF) Internal Internal Thread Thread External External Thread Thread d1 or D1 d2 or D2 d1 or D1 d2 or D2 d or D d or D Note : This figure rounds off 0.320744H. Threads per inch ■Taper Pipe Threads (R, Rc, PT) ■Parallel Pipe Threads for Taper Pipe Threads (Rp, PS) Internal Thread Internal Thread read External Th Information Technical Central axis line of thread Central axis line of thread Threads per inch Threads per inch Technical-92