非标螺纹规格对比表美制圆柱管螺纹（牙型角 60°）公制圆柱螺纹（牙型角60°）英制圆柱管螺纹（牙型角55°）螺纹规格小径大径螺纹规格小径大径螺纹规格小径大径7/16"-UNF9.9 11.0 M12×1.510.512G1/8"-288.69.71/2"-UNF11.5 12.6 M14×1.512.514G1/4"-1911.513.19/16"-UNF13.0 14.2 M16×1.514.516G3/8"-191516.65/8"-UNF14.5 15.7 M18×1.516.518G1/2"-1418.620.911/16"-UNF16.0 17.3 M20×1.518.520G5/8"-1420.622.93/4"-UNF17.5 18.9 M22×1.520.522G3/4"-1424.126.413/16"-UNF19.0 20.5 M24×1.522.524G7/8"-1427.930.27/8"-UNF20.5 22.0 M26×1.524.526G1"-1130.333.21"-UNF23.5 25.2 M27×1.525.527G11/4"-1138.941.99 x6 C- F! ^+ X9 [7 l& A15 X ]6 L( [& o5 I: \& [1 1/16"-UNF24.9 26.8 M30×1.528.530G1$ T4 v, H' _; j* c- ~1/2"-1144.847.911 s, W- Z% [% ~3 w* @$ @3/16"-UNF28.0 30.0 M30×22830G2"-1156.759.6: }( y8 \& r9 e15/16"-UNF31.3 33.2 M36×23436 17/16"-UNF34.5 36.4 M39×23739 15/8"-UNF39.2 41.1 M42×24042 ' Y" |9 W i: B* `& p0 L+ v1 p" i" i6 X' I7 G& h/ g4 g. z11/16"-UNF40.8 42.6 M45×24345 1% X/ y' M+ L5 M) ~ D! y* X& Y7/8"-UNF45.6 47.5 M52×25052 48.8 50.6 M60×25860 2". ~( }0 ?$ e Q/ j% K' U-UNF21/2"-UNF61.5 63.4 M64×26264 公制/美制/英制螺纹对比表公制/美制/英制螺纹对比表A 型美制螺纹（UNF）常用规格 外螺纹 内螺纹-4 9/16"-19 牙 14.28 13.08 -6 11/16''-16 17.46 16.1 -8 13/16''-16 20.64 19.28-10 1''-14 25.40 23.57 -12 1(3/16)''-12 30.00 28.32 -16 1(7/16)''-12 36.51 34.67-20 1(11/16)''-12 42.86 41.02
