规格尺寸对照表紧固件螺纹直径与螺距对照表螺纹M3M4M5M6M8M10M12M14M16M18M20M22M24M27M30M33M36M39M42M45M48M52M56M60M64规格粗牙0.50.70.81.01.251.51.752.02.02.52.52.53.03.03.53.54.04.04.54.55.05.05.55.56.0螺距1.01.52.0细牙螺----1.0--1.51.51.5-2.02.02.02.02.03.03.03.03.03.04.04.04.04.0距1.251.251.5螺栓、螺钉、螺柱公称长度表6810121620253035404550(55)60(65)7075808590(95)100105110115120125130140150160170180190200220240260280300注：尽量不采用括号内尺寸螺栓、螺钉、螺柱螺纹的公称长度螺纹M3M4M5M6M8M10M12M14M16M18M20M22M24M27M30M33M36M39M42M45M48M52M56M60M64规格粗牙1214161822263034384246505460667278849096102----螺距注：公称长度1螺纹长度b,则：①1≤125b=2d+6②1>125—200b=2d+2③1>200b=2d+5GB70-76(老标准)材料：钢机械性能；8.810.9内六角圆柱螺钉螺纹规格dM4M5M6M8M10M12M14M16M20M24M30M36b121424202536354050607080dk7.008.5010.0012.515.018.021.024.030.036.042.050.0k45681012141620243036S3456810121214171924L8-4010-5012-6016-8020-10025-12030-12030-16040-20050-20060-20070-200GB70-85(ISO4762-1977)材料：钢机械性能；8.810.912.9内六角圆柱螺钉螺纹规格dM3M4M5M6M8M10M12M14M16M20M24M30M36B18202224283236404452607284dkmax5.507.008.5010.013.016.018.021.024.030.036.045.054.0kmax345681012141620243036S2.503.004.005.006.008.0010.012.014.017.019.022.027.0L6-308-4010-5012-6016-8020-10025-12030-12030-16040-20050-20060-20070-200GB6170-86(ISO4032-1979)材料：钢机械性能：810I型六角螺母A级和B级不锈钢机械性能：A2-7；A2-50GB6171-86细牙均可供螺纹规格DM2M2.5M3M4M5M6M8M10M12M14M16M18emax4.305.456.017.668.7911.0514.3817.7720.0323.3526.7529.56smax54.08.05.57.08.010.013.016.318.021.024.027.0mmax1.62.02.43.24.75.26.88.410.812.814.815.8螺纹规格DM20M22M24M27M30M33M36M39M42M45M48M56emax32.9537.2939.5545.2050.8555.3760.7966.4072.0276.9592.6093.56smax303436414650556065707585GB31.1-88材料：钢机械性能：8.8六角头螺杆带孔螺栓A和B级(GB31.2、GB31.1均可供)螺纹规格dM6M8M10M12(M14)M16(M18)M20(M22)M24(M27)M30M36M42M48max1.852.252.753.53.54.34.34..35.35.35.36.666.668.368.36d1min1.622.53.23.24445556.36.388GB32.1-88材料：钢机械性能：8.8六角头螺杆带孔螺栓A和B级(GB32.2、GB32.3均可供)螺纹规格dM6M8M10M12(M14)M16(M18)M20(M22)M24(M27)M30M36M42M48公称1.62.0234d1max1.62.02.003.004.00min1.852.252.253.254.30H2.02.63.23.74.45.05.76.27.17.58.59.311.21315GB898-88材料：钢机械性能：4.86.88.810.9双头螺柱(bm=1.25d)不锈钢机械性能：A2-50其它型号双栓均可供货螺纹规格dM5M6M8M10M12M14M16M18M20M22M24M27M30bm公称681012151820222528303538L≤22L≤22L≤22L≤28L≤30L≤35L≤38L≤40L≤40L≤45L≤50L≤60L≤65b=10b=10b=12b=14b=16b=18b=20b=22b=22B=25b=30b=35b=40L>2222<≤l302230L>30L>38L>4024120L>120L>120L>120L>120L>120L>120L>120b=40b=44b=48b=52b=50b=54b=60b=72L16-5020-7020-9025-12025-12030-14030-16035-18035-20040-20050-20050-20060-200材料：钢机械性能；8.8M10M12M16M20M24M30M36M42M4826303846546678--3236445260728496108--576573859710912125303846582585951057.299.2912.3514.3516.3520.4224.4228.4232.506.718.7111.6513.6515.6519.5823.5827.5831.5018222834445767768617.5721.1627.1633.0043.0055.8065.1074.1083.8018.0022.0028.0034.0044.0057.0067.0076.0085.00材料：A3机械性能：3.6M12M16M20M24M30M36M42M183136405058688094106118283236445260728496108202030304560607082931271391922442613021+721+721+1101+1101+1651+2171+2171+255每1000件钢制品的重量≈kg48.8361.27104.6165.379.93134.1208382.1173.4265486.8839.61209336.3617.6104415042639718.512491799310648631454209435735542759010422268445076898944912860544182551130715297材料合金钢钢钢螺栓规格dM16M20M22螺栓dkmin303741101314L40-6065-12045-7075-14050-7580-105b303535404045螺母smax273436mmax17.1020.7023.6029.5637.2939.55垫圈dmin1172123dmax2334042smax4.804.805.80材料机械性能合金钢螺栓10.9S钢螺母10H钢垫圈HRC35-452M16M20[M22]M24[M27]M30＝25L≤50b＝30L≤60b＝36L≤65b＝40L≤70b＝45L≤75b＝50L≤80b＝55=30L>50b=35L>60b=40L>65b=45L>70b=50L>75b=55L>80b=60829.5637.2939.5545.2050.8555.37010.0012.5014.0015.0017.0018.70027.0034.0036.0041.0046.0050.00545-12050-16055-22060-24065-26070-260829.5637.2939.5545.2050.8555.37017.1020.2723.0024.2027.6030.37材料：钢机械性能；8.810.9M12M14M16M18M20M22M24303438424650543640444852566053576165697320.0323.3626.1729.5632.9537.2939.557.508.8010.0011.5012.5014.0015.0018.0021.0024.0027.0030.0034.0036.0045-12060-14055-16080-18065-20090-22080-240材料：钢机械性能；8.810.912.9M12M14M16M18M20M22M2420.0323.3626.1729.5632.9537.2939.557.508.8010.0011.5012.5014.0015.0018.0021.0024.0027.0030.0034.0036.0025-10030-10035-10035-10040-10045-10050-120材料：钢机械性能：8.810.9M6M8M10M12M14M16182226303438283236404413.617.0020.8024.7028.6032.806.808.509.7011.9012.9015.108.0010.0013.0015.0018.0021.0016-6020-8025-10030-10030-12040-150槽螺母——A级和B级材料：钢机械性能：9；1文规格DM5M6M8M10M12M16M208.7911.0514.3817.7720.0326.7532.9281013161824305.105.707.509.3012.0016.4020.30GB6172-86(ISO4035—1979)六角薄螺母——A级和B级材料：钢机械性能：04；05；17H；22HGB6173—86细牙均可供螺文规M4M5M6M8M10M12M16M20M24M30M36格De7.668.7911.0514.3817.7720.0326.7532.9539.5550.8560.79maxs7.008.0010.013.016.018.024.030.036.046.055.0maxm2.202.723.204.05.06.08.010.012.015.018.0maxGB889-86(ISO7040—1983)I型非金属嵌件六角锁紧螺母材料：钢（嵌件尼龙）机械性能：5810GB6182GB6183均可供不锈钢（嵌件尼龙）机械性能：A2-70螺文规格DM5M6M8M10M12M14M16M20M24M30M36M42smax81013161821243036465565hmax6.88.09.511.914.917.019.122.827.132.638.941.5mmax4.404.906.448.0410.3712.1014.1016.9020.224.329.432.4材料：钢（金属嵌件或压点型）机械性能：5；8；106M8M10M12(M4)M16M20M24M30M367.1911.613.215.2192326.932.56.448.0410.3712.114.116.920.224.329.43.74.86.77.89.110.91315.719131618212430364655812.3715.7317.7320.6723.6729.16354553.8GB6181-86六角开槽薄螺母——A级和B级材料：钢机械性能：04；05M5M6M8M10M12M16M2081013161824305.105.707.509.3012.016.4020.303.103.204.505.307.0010.4014.301.402.002.502.803.504.504.50和B级材料：钢机械性能：6；8；10M10×1M12×1.5(M18×1.5)M20×2(M14×1.5)M16×1.5(M10×12.5)(M10×1.25)(M20×1.5)————2528————24.1627.1612.415.817.820.821.82411.9715.3717.3720.2820.9623.163.44.254.255.75.75.72.83.53.54.54.54.516182124273015.7317.7320.6723.6726.1629.168.410.812.814.815.8188.0410.3712.3714.3715.117.32.5×203.2×223.2×264×284×324×36(M22×1.5)M24×2(M27×2)M30×2(M33×2)M36×330343842465029.16333741454927.429.531.834.637.74026.5628.6630.833.636.7396.76.76.78.58.58.55.55.55.5777343641465055333540454953.819.421.523.825.628.73118.5620.6022.9624.7627.86305×405×405×456.3×506.3×606.3×65178-86I型六角开槽螺母——A级和B级材料：钢机械性能：6；8；10M4M5M6M8M10M12M167810131618245.006.707.709.8012.4015.820.803.204.705.206.808.4010.8014.801.201.402.002.502.83.504.50GB61802型六角开槽螺母——A和B级材料：钢机械性能：9；12螺纹规格DM5M6M8M10M12(M14)M16M20M24M30M36max———————28344250demin———————27.16334149max6.98.31012.31619.121.126.331.937.643.7mmin6.67.949.6411.8715.5718.5820.5825.4631.0636.742.7nmax1.422.52.83.53.54.54.55.577min22.63.13.44.254.255.75.76.78.58.5max810131618212430364655smin7.859.7812.7315.7317.7320.6723.6729.16354553.8max5.15.77.59.31214.116.420.323.928.634.7wmin4.85.47.148.9411.5713.415.71922.627.333.1开口销1.2×121.6×142×162.5×203.2×223.2×254×284×365×406.3×506.3×63公称直径与螺距系列表GB193-63公称直径d(毫米)螺距l(毫米)公称直径d(毫米)螺距l(毫米)第一第二第三第一第二第三粗牙细牙粗牙细牙系列系列系列系列系列系列(28)21.5110.250.2303.5(3)21.510.751.10.250.2(32)21.51.20.250.2333.5(3)21.510.751.40.30.235(1.5)1.60.350.2364321.511.80.350.2(38)1.520.40.25394321.512.20.450.2540(3)(2)1.52.50.450.35424.5(4)321.5130.50.35454.5(4)321.513.5(0.6)0.35485(4)321.5140.70.550(3)(2)1.54.5(0.75)0.5525(4)321.5150.80.555(4)(3)21.5(5.5)0.5565.54321.51610.750.558(4)(3)21.5710.750.560(5.5)4321.5181.2510.750.562(4)(3)21.59(1.25)10.750.56464321.51101.51.2510.750.565(4)(3)1.511(1.5)10.750.5686431.51121.751.51.2510.750.51421.51.2510.750.5151.5(1)注：1、选择螺纹的公称直径时，优先选用第一系列，其次第二系列，第三系列尽可能不用。1621.510.750.5171.5(1)、括号内的公称直径和螺距以及粗线右边螺距，尽2182.52210.750.5可能不采用。202.52210.750.53、M14×1.25螺纹仅用于火花塞；M35×1.5螺纹仅用222.5310.750.5于滚珠抽承紧锁螺母。24321.510.75251.5(1)4、国家标准中还列有0.25~0.8和70~600毫米的公称直径系列，因一般应用不多故从略。(26)1.52731.510.75公称直径与螺距系列表GB193-63性能等级序机械性能8.8号3.64.64.85.65.86.89.810.912.9M16抗拉强度公称300400500600800800900100012001、σ2min33040042050052060080083090010401220bN/mmmin951151211481541782342522743183722、维氏硬度HVO3Max206227304329347388423布氏硬度HB、P=300D2min901091131341401812322482693123653、（HB≤140JF，P=10D2）Max20922529832334380413HRB526770808389—————Min洛氏硬度HRC——————22252834394、HRHRB9599—————maxHRC—3235374144、表面硬度5HV0.3max—6406607209401100公称180240320300400480—————6、屈服点σN/mm2bMin190240340300420480—————公称—64064072090010807、屈服强度σN/mm20。2Min—6406607209401100Sp/σsmin或0.940.940.910.940.910.910.910.910.910.880.888、保证应力Sp/σ0.2minSpN/mm2180230310280380440580600660830970、伸长度9σ5%min252214201081212109810、楔负载强度等于最小抗拉强度11、冲击吸收功AkJmin—25—3025201512、头部坚固性在头部及钉杆与头部交接的贺角处不应产生任何裂缝螺纹未脱层最小高度E—(1/2)H(2/3)H(3/4)H13、111全脱碳层的最大深度G.mm—0.015
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