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1、.-螺母六角螺母C 级I 型六角螺母A 和 B 级六角薄螺母（GB/T41-2000）(GB/T6170-2000)(GB/T6172.1-2000)标记示例螺纹规格 D=M12、性能级别为 5 级、不经表面处理、C 级的六角螺母：螺母GB/T41-2000M12螺纹规格 D=M12、性能级别为 8 级、不经表面处理、A 级的 I 型六角螺母：螺母 GB/T6170-2000M12mm螺纹规格 DGB/T41M36.016.015.55.52.41.8M47.667.66773.22.2M58.638.798.798885.64.72.7M610.8911.0511.051010106.15.
2、23.2M814.2014.3814.381313137.96.84M1017.5917.7717.771616169.58.45M1219.8520.0320.0318181812.210.86M1626.1726.7526.7524242415.914.88M2032.9532.9532.9530303018.71810M2439.5539.5539.5536363622.321.512M3050.8550.8550.8546464625.425.615M3660.7960.7960.7955555531.53118M4272.0772.0272.0265656534.93421eGB/T
3、6170GB/T6172.1GB/T41sGB/T6170GB/T6172.1GB/T41mGB/T6170GB/T6172.1注：A 级用于 D16，B 级用于 D161.1.各部位的尺寸各部位的尺寸-可修编.-单位：单位：mmmm螺纹的公称直径螺纹的公称直径(d)(d)(2)(2)螺栓的螺距螺栓的螺距(P)(P)b b参考参考最大最大(基准尺寸基准尺寸)*dkdk最大最大*最小最小dada最大最大最大最大(基准尺寸基准尺寸)最小最小最小最小最大最大最大最大(基准尺寸基准尺寸)最小最小最小最小公称公称(基准尺寸基准尺寸)M3M30.5185.55.685.323.632.862.870.51
4、32.860.12.5M4M40.72077.226.784.743.823.440.6043.820.23M5M50.8228.58.728.285.754.824.580.6054.820.24M6M61241010.229.786.865.825.720.6865.700.255M8M81.25281313.2712.739.287.786.861.0287.640.46M10M101.5321616.2715.7311.2109.789.151.02109.640.48M12M121.75361818.2717.7313.71211.7311.431.451211.570.610(M1
5、4)(M14)2402121.3320.6715.71413.7313.721.451413.570.612dsdse ef fk kr rs s-可修编.-最小最小1 1 栏栏2 2 栏栏2.522.5802.5601.30.35.071.153.023.0803.08020.46.531.44.024.0954.0952.50.58.031.95.025.1405.09530.69.382.36.026.1406.09540.812.333.38.0258.1758.1155115.33410.02510.17510.11561.217.234.812.03212.21212.14271.
6、420.175.8最大最大(1)(1)t tv vdwdwww最小最小最大最大最小最小最小最小螺纹的公称直径螺纹的公称直径(d)(d)(2)(2)螺栓的螺距螺栓的螺距(P)(P)b b参考参考最大最大(基准尺寸基准尺寸)*dkdk最大最大*最小最小dada最大最大最大最大(基准尺寸基准尺寸)最小最小最小最小最大最大最大最大(基准尺寸基准尺寸)最小最小最小最小公称公称(基准尺寸基准尺寸)最小最小1 1 栏栏2 2 栏栏M16M162442424.3323.6717.71615.7316.001.451615.570.61414.03214.21214.14281.623.176.8(M18)(M
7、18)2.5482727.3326.6720.21817.7316.001.871817.570.61414.03214.21214.14291.825.877.7M20M202.5523030.3329.6722.42019.6719.442.042019.480.81717.05017.230(M22)(M22)2.5563333.3932.6124.42221.6719.442.042221.480.81717.05017.230M24M243603636.3935.6126.42423.6721.732.042423.480.81919.06519.275(M27)(M27)36640
8、40.3939.6130.42726.6721.732.892726.4811919.06519.275M30M303.5724545.3944.6133.43029.6725.152.893029.4812222.06522.275dsdse ef fk kr rs s最大最大(1)(1)t tv vdwdwww最小最小最大最大最小最小最小最小10228.878.6112.231.819.5122.434.8110.413.52.738.6112.115.5343.6113.1注(1)：s(最大)的 1 栏适用于强度 8.8 及 10.9 及性状 A2-50、A2-70 的内容，2 栏适用于
9、强度 12.9 的内容。但根据双方当事人之间协议，强度 12.9的内容也可以适用 1 栏。螺纹的公称直径 M20 以上的 s(最大)适用于所有的强度及性状内容。-可修编.-注(2)：螺纹的公称直径中带括号的尽量不要使用。备注：1.头部的侧面带有直纹或网纹参照 JIS B 0951(滚花)。此时，dk(最大)为该表中的带*的数值。此外，需要没有滚花的货时，订货人必须指定。但该 dk(最大)为该表中带*的数值。2.对于螺纹的公称直径建议使用的公称长度()为粗线框内的内容。如果 比虚线位置短的为全螺纹，杆部的不完全螺纹长度约为 3P。3.公称长度()比虚线位置长的话，g(最大)及 s(最小)根据下式
10、决定。g(最大)=公称长度()-bs(最小)=g(最大)-5P2.2.内六角螺栓的内六角螺栓的 L L 和和 s s 及及 gg单位：单位：mmmm螺纹的公称直径螺纹的公称直径(d)(d)L L公称长度公称长度56810121620253035404550556065708090100minmin4.765.767.719.7111.6515.6519.5824.5829.5834.539.544.549.554.459.464.469.479.489.399.3maxmax5.246.248.2910.2912.3516.3520.4225.4230.4235.540.545.550.555
11、.660.665.670.680.690.7100.7M3M3M4M4M5M5M6M6M8M8s min.及s min.及 g max.g max.s sminmin4.59.5ggmaxmax712s sminmin6.511.516.5ggmaxmax101520s sminmin49141924ggmaxmax813182328s sminmin61116212631ggmaxmax111621263136s sminmin5.7510.7515.7520.7525.7530.7535.7545.75ggmaxmax1217222732374252-可修编.-11012013014015
12、0160180200220240260280300螺纹的公称直径螺纹的公称直径(d)(d)L L公称长度公称长度5681012162025303540455055minmin4.765.767.719.7111.6515.6519.5824.5829.5834.539.544.549.554.4maxmax5.246.248.2910.2912.3516.3520.4225.4230.4235.540.545.550.555.6M10M10M12M12(M14)(M14)M16M16(M18)(M18)109.3119.3129.2139.2149.2159.2179.2199.05219.0
13、5239.05258.95278.95298.95110.7120.7130.8140.8150.8160.8180.8200.95220.95240.95261.05281.05301.05s min.及s min.及 g max.g max.s sminmin5.510.515.5ggmaxmax131823s sminmin10.25ggmaxmax19s sminminggmaxmaxs sminminggmaxmaxs sminminggmaxmax-可修编.-6065708090100110120130140150160180200220240260280300螺纹的公称直径螺纹的
14、公称直径(d)(d)L L公称长度公称长度5681012162025minmin4.765.767.719.7111.6515.6519.5824.58maxmax5.246.248.2910.2912.3516.3520.4225.42M20M20s min.及s min.及 g max.g max.s sminminggmaxmaxs sminminggmaxmaxs sminminggmaxmaxs sminminggmaxmaxs sminminggmaxmax(M22)(M22)M24M24(M27)(M27)M30M3059.464.469.479.489.399.3109.311
15、9.3129.2139.2149.2159.2179.2199.05219.05239.05258.95278.95298.9560.665.670.680.690.7100.7110.7120.7130.8140.8150.8160.8180.8200.95220.95240.95261.05281.05301.0520.525.530.540.550.560.528333848586815.2520.2525.2535.2545.2555.2566.2575.252429344454647484101520304050607080902025304050607080901001116263
16、64656667686961062126364656667686961061164.59.519.529.539.549.559.569.579.589.599.5119.5172232425262728292102112132-可修编.-3035404550556065708090100110120130140150160180200220240260280300参考：内六角螺栓的沉头孔及螺栓孔的尺寸29.5834.539.544.549.554.459.464.469.479.489.399.3109.3119.3129.2139.2149.2159.2179.2199.05219.052
17、39.05258.95278.95298.9530.4235.540.545.550.555.660.665.670.680.690.7100.7110.7120.7130.8140.8150.8160.8180.8200.95220.95240.95261.05281.05301.0515.525.535.545.555.565.575.585.595.5115.5135.5283848586878889810812814811.521.531.541.551.561.571.581.591.5111.5131.5243444546474849410412414415253545556575
18、851051253040506070809010012014091929394959697999119139159179199219243444546474849411413415417419421423420.530.540.550.560.570.590.5110.5130.5150.5170.5190.5210.5384858687888108128148168188208228-可修编.-单位：单位：mmmm螺纹螺纹的公称的公称直径直径(d)(d)dsddkDkHHd233.45.56.532.73.32.644.57843.64.43.455.58.59.554.65.44.366.
19、6101165.56.55.189131487.48.66.910111617.5109.210.88.61214182012111310.4141621231412.815.212.2161824261614.517.514.2182027291816.519.515.7202230322018.521.517.7222433352220.523.519.7242636392422.525.521.22730404327252924.23033454830283226.7M3M3M4M4M5M5M6M6M8M8M10M10M12M12M14M14M16M16M18M18M20M20M22M22M24M24M27M27M30M30-可修编.