Originally posted on 2020年12月20日 @ 下午9:45
螺纹规格为M8×1~M64×4、细牙螺纹、性能等级为04、05、A2-025、A4-025、A2-035、A4-035、CU2、CU3和AL4级、产品等级为A和B级倒角的六角薄螺母。
A级用于D≤16mm;B级用于D>16mm的螺母。
标记示例:
螺纹规格D=M16×1.5、细牙螺纹、性能等级为05级、不经表面处理、产品等级为A级倒角的六角薄螺母的标记:
螺母 GB/T 6173 M16×1.5

螺纹规格为M8×1~M64×4、细牙螺纹的六角薄螺母:
螺纹规格 | da | dw | e | m | mw | s | |||
D×P | max | min | min | min | max | min | min | 公称=max | min |
M8×1 | 8.75 | 8 | 11.63 | 14.38 | 4 | 3.7 | 2.96 | 13 | 12.73 |
M10×1 | 10.8 | 10 | 14.63 | 17.77 | 5 | 4.7 | 3.76 | 16 | 15.73 |
M12×1.5 | 13 | 12 | 16.63 | 20.03 | 6 | 5.7 | 4.56 | 18 | 17.73 |
M16×1.5 | 17.3 | 16 | 22.49 | 26.75 | 8 | 7.42 | 5.94 | 24 | 23.67 |
M20×1.5 | 21.6 | 20 | 27.7 | 32.95 | 10 | 9.1 | 7.28 | 30 | 29.16 |
M24×2 | 25.9 | 24 | 33.25 | 39.55 | 12 | 10.9 | 8.72 | 36 | 35 |
M30×2 | 32.4 | 30 | 42.75 | 50.85 | 15 | 13.9 | 11.12 | 46 | 45 |
M36×3 | 38.9 | 36 | 51.11 | 60.79 | 18 | 16.9 | 13.52 | 55 | 53.8 |
M42×3 | 45.4 | 42 | 59.95 | 71.3 | 21 | 19.7 | 15.76 | 65 | 63.1 |
M48×3 | 51.8 | 48 | 69.45 | 82.6 | 24 | 22.7 | 18.16 | 75 | 73.1 |
M56×4 | 60.5 | 56 | 78.66 | 93.56 | 28 | 26.7 | 21.36 | 85 | 82.8 |
M64×4 | 69.1 | 64 | 88.16 | 104.86 | 32 | 30.4 | 24.32 | 95 | 92.8 |
非优选的螺纹规格
螺纹规格 | da | dw | e | m | mw | s | |||
D×P | max | min | min | min | max | min | min | 公称=max | min |
M10×1.25 | 10.8 | 10 | 14.63 | 17.77 | 5 | 4.7 | 3.76 | 16 | 15.73 |
M12×1.25 | 13 | 12 | 16.63 | 20.03 | 6 | 5.7 | 4.56 | 18 | 17.73 |
M14×1.5 | 15.1 | 14 | 19.64 | 23.36 | 7 | 6.42 | 5.14 | 21 | 20.67 |
M18×1.5 | 19.5 | 18 | 24.85 | 29.56 | 9 | 8.42 | 6.74 | 27 | 26.16 |
M20×2 | 21.6 | 20 | 27.7 | 32.95 | 10 | 9.1 | 7.28 | 30 | 29.16 |
M22×1.5 | 23.7 | 22 | 31.35 | 37.29 | 11 | 9.9 | 7.92 | 34 | 33 |
M27×2 | 29.1 | 27 | 38 | 45.2 | 13.5 | 12.4 | 9.92 | 41 | 40 |
M33×2 | 35.6 | 33 | 46.55 | 55.37 | 16.5 | 15.4 | 12.32 | 50 | 49 |
M39×3 | 42.1 | 39 | 55.86 | 66.44 | 19.5 | 18.2 | 14.56 | 60 | 58.8 |
M45×3 | 48.6 | 45 | 64.7 | 76.95 | 22.5 | 21.2 | 16.96 | 70 | 68.1 |
M52×4 | 56.2 | 52 | 74.2 | 88.25 | 26 | 24.7 | 19.76 | 80 | 78.1 |
M60×4 | 64.8 | 60 | 83.41 | 99.21 | 30 | 28.7 | 22.96 | 90 | 87.8 |