美制特制螺纹规格（UNEF）NO.12-321\\4-325\\16-323\\8-327\\16-281\\2-289\\16-245\\8-243\\4-207\\8-201--20标准径4.75.67.18.710.211.613.214.817.821242级牙钻孔径规格最大最小SM1\\8-404.8264.623SM1\\8-44SM9\\64-405.695.486SM11\\647.2647.087SM3\\16-328.8658.661SM3\\16-2810.33810.135SM7\\32-3213.38611.709SM15\\64-2814.98613.132SM1\\4-4014.98614.732SM1\\4-2817.95817.678SM9\\32-2821.13320.859SM11\\31-2824.30824.028SM3\\8-28SM7\\16-28SM7\\16-16SM1\\2-20SM9\\16-20规格M3*0.5M3*0.6M3.5*0.6M4*0.7M4*0.75M4.5*0.75M5*0.8M5*0.9M6*1.0M7*1.0M8*1.0M8*1.25针车螺纹滚造径2.735-2.6682.769-2.7223.128-3.0833.855-3.8054.205-4.1554.143-4.0935.003-4.9555.325-5.5705.890-54.7355.721-5.3686.508-6.6488.092-8.4328.880-8.01510.466-10.40110.037-9.96711.819-11.74913.4-13.425美制管螺纹规格最大1\\16-271\\8-271\\4-183\\8-181\\2-143\\4-141-11-1\\21-1\\4-11-1\\21-1\\2-11-1\\22-11-1\\26.18.3810.7214.2717.4822.6328.5837.3143.6655.58钻孔径NPT最小6.258.4311.1314.2717.8623.0128.9837.6944.0455.96NPS6.358.7411.1314.6818.2623.4229.3638.144.4556.36公制螺纹滚造径2.63-2.52.53-2.53.06-3.033.49-3.153.45-3.413.96-3.924.43-4.384.36-4.315.3-5.256.3-6.257.28-7.237.12-7.07英制电器螺纹规格2BA3BA4BA5BA6BA钻孔径4-4.23-3.22.7-2.82.4-2.5
美制特制美制表管螺纹／针车／英制电器／公制螺纹
