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1、紧固件国标大全文件编号版本/版次A/0表1：未标注尺寸极限偏差（本表用于螺纹长度尺寸L公差查询）基本尺寸公 差 带大于至H12H13H14H15H16H17H18h12h13h14h15h16h17h18Js12(js12)Js13(js13)Js14(js14)Js15(js15)Js16(js16)Js17(js17)Js18(js18)-3+0.100+0.140+0.250+0.400+0.600+1.000+1.400-0.100-0.140-0.250-0.400-0.600-1.00-1.40.050.070.1250.200.300.50.736+0.120+0.180+0.3
2、00+0.480+0.750+1.20+1.800-0.120-0.180-0.300-0.480-0.750-1.20-1.80.060.090.150.240.3750.60.9610+0.150+0.220+0.360+0.580+0.900+1.50+2.200-0.150-0.220-0.360-0.580-0.900-1.50-2.20.0750.110.180.290.450.751.11018+0.180+0.270+0.430+0.700+1.100+1.80+2.700-0.180-0.270-0.430-0.700-1.100-1.80-2.70.090.1350.215
3、0.350.550.91.351830+0.210+0.330+0.520+0.840+1.300+2.10+3.300-0.210-0.330-0.520-0.840-1.300-2.10-3.30.1050.1650.260.420.651.051.653050+0.250+0.390+0.620+1.00+1.600+2.50+3.900-0.250-0.390-0.620-1.000-1.600-2.50-3.90.1250.1950.310.500.801.251.955080+0.300+0.460+0.740+1.200+1.900+3.00+4.600-0.300-0.460-
4、0.740-1.200-1.900-3.00-4.60.150.230.370.600.951.52.380120+0.350+0.540+0.870+1.400+2.200+3.50+5.400-0.350-0.540-0.870-1.400-2.200-3.50-5.40.1750.270.4350.701.101.752.7120180+0.400+0.630+1.000+1.600+2.500+4.00+6.300-0.400-0.630-1.000-1.600-2.500-4.00-6.30.200.3150.500.801.252.03.15180250+0.460+0.720+1
5、.150+1.850+2.900+4.60+7.200-0.460-0.720-1.150-1.850-2.900-4.60-7.20.230.360.5750.9251.452.33.6250315+0.520+0.810+1.300+2.100+3.200+5.20+8.100-0.520-0.810-1.300-2.100-3.200-5.20-8.10.260.4050.651.051.602.64.05注：一般情况下，“孔”用公差代号为H、“轴”用公差代号为h、“长度”用公差代号为JS或js表2：GB/T2561-2003普通螺纹极限偏差（公差单位um0.001）（本表用于螺栓直径d
6、尺寸公差查询）基本大径/mm螺距/mm内螺纹小径外螺纹大径公差带ES上偏差EI下偏差公差带es上偏差si下偏差2.85.60.76G+202+226e-56-1966H+18006f-38-1787G+246+226g-22-1627H+22406h0-1400.86G+224+246e-60-2106H+20006f-38-1887G+274+266g-24-1747H+25006h0-1505.611.216G+262+266e-60-2406H+23606f-40-2207G+326+266g-26-2067H+30006h0-1801.256G+293+286e-63-2756H+26
7、506f-42-2547G+363+286g-28-2407H+33506h0-2121.56G+332+326e-67-3036H+30006f-45-2817G+407+326g-32-2687H+37506h0-23611.222.41.56G+332+326e-67-3036H+30006f-45-2817G+407+326g-32-2687H+37506h0-2361.756G+369+346e-71-3366H+33506f-48-3137G+459+346g-34-29911.222.47H+42506h0-26526G+413+386e-71-3516H+37506f-52-3
8、327G+513+386g-38-3187H+47506h0-2802.256G+492+426e-80-4156H+45006f-58-3937G+602+426g-42-3777H+56006h0-35522.4451.56G+332+326e-67-3036H+30006f-45-2817G+407+326g-32-2687H+37506h0-23626G+413+386e-71-3516H+37506f-52-3327G+513+386g-38-3187H+47506h0-2801. GB/T 70.1-2008内六角圆柱头螺栓t（直径公差执行6g等级公差、长度L公差执行JS15等级公
9、差）dkdsL注： 不锈钢螺栓通常标记为A4-70,A2-70字样（“A”为“奥氏体”结构，“2”为材质，一般为304,7代表抗拉力度不得小于700N/mm*mm）公称直径M1.6M2M2.5M3M4M5M6M8M10M12M14M16M20M24M30M36螺距P0.350.40.450.50.70.81.01.251.51.75222.53.03.54顶帽直径dkMAX光面3.03.804.505.507.08.5010.0013.0016.0018.0021.0024.0030.0036.0045.0054.00MAX滚花3.143.984.685.687.228.7210.2213.2
10、716.2718.2721.3324.3330.3336.3945.3954.46MIN2.863.624.325.326.788.289.7812.7315.7317.7320.6723.6729.6735.6144.6153.54顶帽长度kMAX1.602.02.503.004.005.006.008.0010.0012.0014.0016.0020.0024.0030.0036.00MIN1.461.862.362.863.824.825.77.649.6311.5713.5715.5723.4823.4829.4835.38顶帽内宽度s扳手号1.51.522.5345681012141
11、7192227MAX1.581.582.082.583.084.095.146.148.17510.17512.21214.21217.2319.27522.27527.275MIN1.521.522.022.523.024.025.026.028.02510.02512.03214.03217.0519.6522.06527.065无螺纹直径dsMAX1.602.002.53.004.005.006.008.0010.0012.0014.0016.0020.0024.0030.0036.00MIN1.461.862.362.863.824.825.827.789.7811.7313.7315
12、.7319.6723.6729.6735.61顶帽内深度t0.711.11.322.5345678101215.5192. GB/T 9074.5十字槽小盘头螺钉和平垫圈组合件（制定d尺寸与长度L尺寸见下页“GB/T823-2016十字槽小盘头螺钉”）螺纹规格dabMAXdaMAX平垫圈尺寸c螺钉和垫片的形式代号小系列S型标准系列N型大系列L型产品代号形式标准编号h公称d2MAXh公称d2MAXh公称d2MAX十字槽小盘头螺钉S1GB/T823M22Pd2.40.64.50.650.66平垫圈用于螺钉和垫圈组合件SS型GB/T97.4M2.52.80.650.660.68NN型M33.30.6
13、60.670.89LL型M3.53.70.870.880.811标记示例： 1、十字槽小盘头螺钉和平垫圈组合件包括：一个GB/T823 M520-4.8级螺钉（代号S1）和一个GB/T97.4标准系列垫圈（代号N）；组合件表面镀锌钝化（省略标记）的标记；螺钉和垫圈组合件GB/T 9074.5 M520 S1 N M44.30.880.89112M55.219110115M66.21.6111.6121.618M88.41.6151.616224 3.GB/T823-2016十字槽小盘头螺钉（直径公差执行6g等级公差、长度L公差执行JS15等级公差） 螺纹规格dM2M2.5M3M3.5M4M5M
14、6M8螺距P0.40.450.50.60.70.811.252.5螺纹距帽aMAX0.80.911.21.41.62帽直径dk公称MAX3.54.55.567910.514MIN3.24.25.25.76.648.6410.0713.57十字槽槽号NO123H型插入深度m2.22.63.53.84.14.86.27.7MAX1.011.421.431.732.032.732.864.36MIN0.6010.861.151.452.142.263.734.GB/T70.3-2008内六角沉头螺钉（12.9级螺钉直径d公差选用5g6g，其他等级按6g执行，长度L按JS15等级公差执行） 螺纹规格d
15、M3M4M5M6M8M10M12M14M16M20螺距P0.50.70.811.251.51.75222.540.32帽直径dk理论MAX6.728.9611.2013.3417.9222.4026.8830.833.6实际MAX5.547.539.4311.3415.2419.2223.1226.5229.0136.05顶帽槽直径S公称22.534568101012MAX2.0802.583.0804.0955.1406.1408.17510.17510.17512.212MIN2.0202.523.0204.0205.0206.0208.02510.02510.02512.032顶帽槽深度
16、tMIN1.11.51.92.233.64.34.54.85.65. GB/T818-2000十字槽盘头螺钉（直径公差执行6g等级公差、长度L公差执行JS15等级公差） 螺纹规格dM1.6M2M2.5M3M3.5M4M5M6M8M10螺距P0.350.40.450.50.60.70.811.251.53螺纹距帽aMAX0.70.80.911.21.41.622.5帽直径dk公称MAX3.24.05.05.67.08.09.512.016.020.0MIN2.93.74.75.36.647.649.1411.5715.5719.48十字槽槽号NO01234H型插入深度m1.71.92.733.9
17、4.44.95.9910.1MAX0.951.21.551.81.92.42.93.64.65.8MIN0.70.91.151.41.41.92.43.14.05.2Z型插入深度m1.62.12.62.83.94.34.76.78.89.9MAX0.91.421.51.751.932.342.743.464.505.69MIN0.651.171.251.501.481.892.293.034.055.246. GB/T 819.1-2000 十字槽沉头螺钉 第一部分 钢4.8级（与GB/T819-85通用）（直径公差执行6g等级公差、长度L公差执行JS15等级公差） 螺纹规格dM1.6M2M2
18、.5M3M3.5M4M5M6M8M10螺距P0.350.40.450.50.60.70.811.251.5螺纹距帽aMAX0.70.80.911.21.41.622.53帽直径dk公称3.64.45.56.38.29.410.412.617.320MAX3.03.84.75.57.38.49.311.315.818.3MIN2.73.54.45.26.948.048.9410.8715.3717.78十字槽槽号NO01234H型插入深度m1.61.92.93.24.44.65.26.88.910MAX0.91.21.82.12.42.63.23.54.65.7MIN0.60.91.41.71.
19、92.12.73.04.05.1Z型插入深度m1.61.92.834.14.44.96.68.89.8MAX0.51.201.732.012.202.513.053.454.605.64MIN0.700.951.481.761.752.062.603.004.155.197. GB/T13806.1-1992十字槽螺钉（直径尺寸d公差执行规则，M1.2M1.4执行4h公差，M1.6-M3执行6g公差，长度L执行JS15等级公差）C型-十字槽半沉头螺钉A型-十字槽圆柱头螺钉B型-十字槽沉头螺钉C型十字槽半沉头螺钉规格螺距Pa顶帽直径dk顶帽高度kNOmMINMAX理论值MAXMINMAXMINM
20、1.20.250.52.221.920.70.6201.30.50.7M1.40.30.62.642.352.310.70.6201.40.50.8M1.60.350.73.082.72.660.80.701.50.60.8M20.40.83.523.12.930.90.7601.60.70.9M2.50.450.94.43.83.621.10.9512.30.81.1M30.516.35.55.361.41.2612.61.11.4螺纹规格dP螺距a 螺纹顶面距离A型-十字槽圆柱头螺钉B型-十字槽沉头螺钉顶帽直径dk顶帽高度kH型十字槽（插入深度）顶帽直径dk顶帽高度kH型十字槽（插入深度）
21、MAXMINMAXMIN槽号mMAXMIN理论值MAXMINMAXMIN槽号mMAXMINM1.20.250.521.860.550.451.010.320.322.221.960.70.601.30.50.7M1.40.30.62.32.160.550.451.11.10.350.352.642.352.310.70.601.40.50.8M1.60.350.72.62.460.550.451.11.10.40.43.082.72.660.80.701.50.60.8M20.40.832.860.70.61.21.20.30.453.523.12.930.90.7601.60.70.9M2.
22、50.450.93.83.620.90.761.81.80.40.64.43.83.621.10.9512.30.81.1M30.5154.821.41.262.32.30.8516.35.55.361.41.2612.61.11.48. GB 5781-2000六角头螺栓全螺纹C级（直径公差执行6g等级公差、长度L公差执行JS15等级公差）公称直径M5M6M8M10M12M16M20M24M30M36M42M48M56M64螺纹值顶帽距离aMAX2.434.04.55.367.5910.51213.51516.518MIN0.811.251.51.7522.533.544.555.56顶帽台
23、阶尺寸cMAX0.50.50.60.60.60.80.80.80.80.81111顶帽高度k公称3.545.36.47.51012.51518.722.526303540MAX3.8754.3755.6756.857.9510.7513.415.919.7523.5527.0531.0536.2541.25MIN3.1253.6254.9255.957.059.2511.614.117.6521.4524.9528.9533.7538.75顶面台阶尺寸dwMIN6.748.7411.4714.4716.472227.733.2542.7551.1159.9569.4578.6688.16顶帽宽
24、度尺寸s公称MAX810131618243036465565758595MIN7.649.6412.5715.5717.5723.1629.16354553.863.173.182.892.89. GB 5783-1986六角头螺栓全螺纹A级和B级（直径公差执行6g等级公差、长度L公差执行JS15等级公差）公称直径M2M4M5M6M8M10M12M16M20M24M30M36螺纹值顶帽距离aMAX1.52.12.433.754.55.2367.5910.512顶帽台阶高度cMAX0.40.40.50.50.60.60.60.80.80.80.80.8MIN0.150.150.150.150.1
25、50.150.150.20.20.20.20.2顶帽高度k公称22.83.545.36.471012.51518.722.5A级MAX2.122.923.654.155.456.587.6810.1812.7215.22-MIN1.882.683.353.855.156.227.329.8212.2814.78-B级MAX-3.744.245.546.697.7910.2912.8515.3519.1222.92MIN-3.263.765.066.117.219.7112.1514.6518.2822.08台阶直径尺寸dwMINA级4.65.96.98.911.614.616.622.528.
26、233.642.751.1B级-6.78.711.414.416.42227.733.2顶帽宽度尺寸sMAX5.578101316182430364655MINA级5.326.787.789.7812.7315.7317.7323.6729.6735.384553.8B级-7.649.6412.5715.5717.5723.1629.1635公称直径M42M48M56M64注：螺栓等级划分A级：d24、L10d或L150mmB级：d24、L10d或L150mm螺纹值顶帽距离aMAX13.51516.518MIN4.555.56顶帽台阶高度cMAX1111MIN0.30.30.30.3顶帽高度k
27、公称26303540MAX27.0531.0536.2541.25MIN24.7528.9533.7538.75台阶直径尺寸dwMIN60.669.478.788.2顶帽宽度尺寸sMAX65758595MIN63.873.182.892.810. GB/T 41-2000六角螺母6级（内径d执行7H公差等级）优选型螺纹规格非优选型螺纹规格螺纹规格dM5M6M8M10M12M16M20M24M30M36M42M14M18M22M27M33厚度尺寸mMAX5.66.47.99.512.215.91922.326.431.934.913.916.920.224.729.5MIN4.44.96.481
28、0.414.116.920.224.329.432.412.115.118.122.627.4宽度尺寸SMAX8101316182430364655652127344150MIN7.649.6412.5715.5717.5723.1629.16354553.863.120.1626.1633404911. GB 6170-86 1型六角螺母 A和B级（内径d执行6H公差等级）bd规格M1.6M2M2.5M3M4M5M6M8M10M12M16M20M24M30M36M42CMAX0.20.20.30.40.40.50.50.60.60.60.80.80.80.80.81dwMIN2.43.14.
29、14.65.96.98.911.614.616.622.527.733.242.751.160.6厚度尺寸mMAX1.31.622.43.24.75.26.88.410.814.81821.525.63134MIN1.051.351.752.152.94.44.96.448.0410.3714.116.920.224.329.432.4宽度尺寸SMAX3.2455.57810131618243036465565MIN3.023.824.826.326.787.789.7812.7315.7317.7323.6729.16354553.863.812. GB 6170-86 1型六角螺母 A和B
30、级（内径d执行6H公差等级）bd规格M1.6M2M2.5M3M4M5M6M8M10M12M16M20M24M30M36M42CMAX0.20.20.30.40.40.50.50.60.60.60.80.80.80.80.81dwMIN2.43.14.14.65.96.98.911.614.616.622.527.733.242.751.160.6厚度尺寸mMAX1.31.622.43.24.75.26.88.410.814.81821.525.63134MIN1.051.351.752.152.94.44.96.448.0410.3714.116.920.224.329.432.4宽度尺寸SM
31、AX3.2455.57810131618243036465565MIN3.023.824.826.326.787.789.7812.7315.7317.7323.6729.16354553.863.813.GB/T93-1987 弹簧垫圈bdH规格22.534568101214161820222427内径dMIX2.352.853.44.45.46.688.6810.912.914.916.919.0421.0423.3425.528.5MIN2.12.63.14.15.16.18.110.212.214.216.218.220.222.524.527.5S/b公称0.50.650.81.11.31.62.12.63.13.64.14.555.566.8MAX0.580.730.91.21.41.72.22.753.253.8