螺丝的扭力标准

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国家标准GB3098.13中规定了8.8级 9.8级 10.9级 12.9级螺丝的部分规格的最小破坏扭矩


4.8级螺丝扭力标准:

4.8级强度比系数取值按X=0.916

螺纹
规格
外径
(mm)
牙距
(mm)
牙底径
(mm)
4.8抗拉强度
(Mpa)
强度比(鼠标停见说明)扭转强度
(Mpa)
抗扭截面模数理论扭力
(NM)
扭力国标值
(NM)
相差
(NM)
建议安装力
(NM)
DPdσb minXτBWPMBS
M1*0.250.930.250.65944200.916384.720.060.022未规定 0.013
M1.2*0.251.130.250.85944200.916384.720.120.048 0.029
M1.4*0.31.330.31.00524200.916384.720.200.077 0.046
M1.6*0.351.50.351.12114200.916384.720.280.106 0.064
M2*0.41.890.41.45704200.916384.720.610.234 0.14
M2.5*0.452.380.451.89294200.916384.721.330.51 0.31
M3*0.52.870.52.32874200.916384.722.480.95 0.57
M3.5*0.63.350.62.70054200.916384.723.861.49 0.89
M4*0.73.840.73.08224200.916384.725.752.21 1.33
M5*0.84.830.83.96404200.916384.7212.224.70 2.82
M6*1.05.7914.70754200.916384.7220.477.88 4.73
M8*1.257.761.256.40694200.916384.7251.6119.86 11.91
M10*1.59.731.58.10624200.916384.72104.5440.22 24.13
M12*1.7511.71.759.80564200.916384.72185.0371.18 42.71
M14*1.7513.681.7511.78564200.916384.72321.27123.60 74.16
M16*215.68213.51504200.916384.72484.46186.38 111.83
M18*217.62215.45504200.916384.72724.46278.71 167.23
M20*2.519.622.516.91374200.916384.72949.57365.32 219.19
M22*2.521.622.518.91374200.916384.721327.82510.84 306.50
M24*323.58320.33244200.916384.721649.60634.63 380.78
M27*326.58323.33244200.916384.722492.82959.04 575.42
M30*3.529.523.525.73124200.916384.723343.401286.27 771.76
M33*3.532.523.528.73124200.916384.724654.471790.67 1074.40
M36*435.47431.13994200.916384.725926.012279.85 1367.91
M39*438.47434.13994200.916384.727809.033004.29 1802.57
8.8级螺丝扭力标准:
螺纹
规格
外径
(mm)
牙距
(mm)
牙底径
(mm)
8.8抗拉强度
(Mpa)
强度比扭转强度
(Mpa)
抗扭截面模数理论扭力
(NM)
扭力国标值
(NM)
相差
(NM)
建议安装力
(NM)
DPdσb minXτBWPMBS
M1*0.250.930.250.65948000.846720.060.0380.0330.0050.023
M1.2*0.251.130.250.85948000.846720.120.0840.0750.0090.050
M1.4*0.31.340.31.01528000.846720.210.1380.120.0180.083
M1.6*0.351.50.351.12118000.846720.280.1860.160.0260.112
M2*0.41.890.41.45708000.846720.610.410.370.0380.24
M2.5*0.452.380.451.89298000.846721.330.890.820.0740.54
M3*0.52.880.52.33878000.846722.511.691.50.191.01
M3.5*0.63.360.62.71058000.846723.912.632.40.231.58
M4*0.73.830.73.07228000.846725.693.823.60.222.29
M5*0.84.780.83.91408000.8467211.777.917.60.314.74
M6*1.05.7814.69758000.8467220.3413.67130.678.20
M8*1.257.781.256.42698000.8467252.1035.01332.0121.01
M10*1.59.771.58.14628000.84672106.0971.29665.2942.78
M12*1.7511.761.759.86568000.84672188.44126.63没规定 75.98
M14*1.7513.741.7511.84568000.84672326.20219.20 131.52
M16*215.74213.57508000.84672490.94329.91 197.95
M18*217.71215.54508300.84697.2737.19513.97 308.38
M20*2.519.712.517.00378300.84697.2964.81672.66 403.60
M22*2.521.622.518.91378300.84697.21327.82925.76 555.45
M24*323.58320.33248300.84697.21649.601150.10 690.06
M27*326.58323.33248300.84697.22492.821737.99 1042.79
M30*3.529.523.525.73128300.84697.23343.402331.02 1398.61
M33*3.532.523.528.73128300.84697.24654.473245.10 1947.06
M36*435.47431.13998300.84697.25926.014131.61 2478.97
M39*438.47434.13998300.84697.27809.035444.46 3266.67
9.8级螺丝扭力标准:
螺纹
规格
外径
(mm)
牙距
(mm)
牙底径
(mm)
9.8抗拉强度
(Mpa)
强度比扭转强度
(Mpa)
抗扭截面模数理论扭力
(NM)
扭力国标值
(NM)
相差
(NM)
建议安装力
(NM)
DPdσb minXτBWPMBS
M1*0.250.930.250.65949000.815733.50.060.0410.0360.0050.025
M1.2*0.251.130.250.85949000.815733.50.120.0910.0820.0090.055
M1.4*0.31.340.31.01529000.815733.50.210.1510.130.0210.090
M1.6*0.351.50.351.12119000.815733.50.280.2030.180.0230.122
M2*0.41.890.41.45709000.815733.50.610.450.400.0450.267
M2.5*0.452.380.451.89299000.815733.51.330.980.90.080.59
M3*0.52.880.52.33879000.815733.52.511.841.70.141.10
M3.5*0.63.360.62.71059000.815733.53.912.872.70.171.72
M4*0.73.830.73.07229000.815733.55.694.173.90.272.50
M5*0.84.780.83.91409000.815733.511.778.638.30.335.18
M6*1.05.7814.69759000.815733.520.3414.92140.928.95
M8*1.257.781.256.42699000.815733.552.1038.21362.2122.93
M10*1.59.771.58.14629000.815733.5106.0977.82725.8246.69
M12*1.7511.761.759.86569000.815733.5188.44138.22没规定 82.93
M14*1.7513.741.7511.84569000.815733.5326.20239.27 143.56
M16*215.74213.57509000.815733.5490.94360.10 216.06
M18*217.71215.54509000.815733.5737.19540.73 324.44
M20*2.519.712.517.00379000.815733.5964.81707.69 424.61
M22*2.521.622.518.91379000.815733.51327.82973.96 584.37
M24*323.58320.33249000.815733.51649.601209.98 725.99
M27*326.58323.33249000.815733.52492.821828.48 1097.09
M30*3.529.523.525.73129000.815733.53343.402452.39 1471.43
M33*3.532.523.528.73129000.815733.54654.473414.05 2048.43
M36*435.47431.13999000.815733.55926.014346.73 2608.04
M39*438.47434.13999000.815733.57809.035727.92 3436.75
10.9级螺丝扭力标准:
螺纹
规格
外径
(mm)
牙距
(mm)
牙底径
(mm)
10.9抗拉强度
(Mpa)
强度比扭转强度
(Mpa)
抗扭截面模数理论扭力
(NM)
扭力国标值
(NM)
相差
(NM)
建议安装力
(NM)
DPdσb minXτBWPMBS
M1*0.250.930.250.659410400.79821.60.060.0460.0400.0060.028
M1.2*0.251.130.250.859410400.79821.60.120.1020.0920.0100.061
M1.4*0.31.340.31.015210400.79821.60.210.1690.140.0290.101
M1.6*0.351.50.351.121110400.79821.60.280.2270.200.0270.136
M2*0.41.890.41.457010400.79821.60.610.500.450.0490.299
M2.5*0.452.380.451.892910400.79821.61.331.0910.090.66
M3*0.52.880.52.338710400.79821.62.512.061.90.161.24
M3.5*0.63.360.62.710510400.79821.63.913.2130.211.93
M4*0.73.830.73.072210400.79821.65.694.684.40.282.81
M5*0.84.780.83.914010400.79821.611.779.679.30.375.80
M6*1.05.7814.697510400.79821.620.3416.71160.7110.03
M8*1.257.781.256.426910400.79821.652.1042.80402.8025.68
M10*1.59.771.58.146210400.79821.6106.0987.16816.1652.30
M12*1.7511.761.759.865610400.79821.6188.44154.82没规定 92.89
M14*1.7513.741.7511.845610400.79821.6326.20268.00 160.80
M16*215.74213.575010400.79821.6490.94403.35 242.01
M18*217.71215.545010400.79821.6737.19605.67 363.40
M20*2.519.712.517.003710400.79821.6964.81792.68 475.61
M22*2.521.622.518.913710400.79821.61327.821090.94 654.56
M24*323.58320.332410400.79821.61649.601355.31 813.19
M27*326.58323.332410400.79821.62492.822048.10 1228.86
M30*3.529.523.525.731210400.79821.63343.402746.94 1648.16
M33*3.532.523.528.731210400.79821.64654.473824.11 2294.47
M36*435.47431.139910400.79821.65926.014868.81 2921.28
M39*438.47434.139910400.79821.67809.036415.90 3849.54
12.9级螺丝扭力标准:  
螺纹
规格
外径
(mm)
牙距
(mm)
牙底径
(mm)
12.9抗拉强度
(Mpa)
强度比扭转强度
(Mpa)
抗扭截面模数理论扭力
(NM)
扭力国标值
(NM)
相差
(NM)
建议安装力
(NM)
DPdσb minXτBWPMBS
M1*0.250.930.250.659412200.759150.060.050.0450.0060.031
M1.2*0.251.130.250.859412200.759150.120.110.100.0140.068
M1.4*0.31.340.31.015212200.759150.210.190.160.0280.113
M1.6*0.351.50.351.121112200.759150.280.250.220.0330.152
M2*0.41.890.41.457012200.759150.610.560.500.0550.333
M2.5*0.452.380.451.892912200.759151.331.221.10.120.73
M3*0.52.880.52.338712200.759152.512.302.10.201.38
M3.5*0.63.360.62.710512200.759153.913.583.30.282.15
M4*0.73.830.73.072212200.759155.695.214.90.313.12
M5*0.84.780.83.914012200.7591511.7710.77100.776.46
M6*1.05.7814.697512200.7591520.3418.61171.6111.17
M8*1.257.781.256.426912200.7591552.1047.67443.6728.60
M10*1.59.771.58.146212200.75915106.0997.07907.0758.24
M12*1.7511.761.759.865612200.75915188.44172.42没规定 103.45
M14*1.7513.741.7511.845612200.75915326.20298.47 179.08
M16*215.74213.575012200.75915490.94449.21 269.52
M18*217.71215.545012200.75915737.19674.53 404.72
M20*2.519.712.517.003712200.75915964.81882.80 529.68
M22*2.521.622.518.913712200.759151327.821214.96 728.97
M24*323.58320.332412200.759151649.601509.38 905.63
M27*326.58323.332412200.759152492.822280.93 1368.56
M30*3.529.523.525.731212200.759153343.403059.21 1835.53
M33*3.532.523.528.731212200.759154654.474258.84 2555.30
M36*435.47431.139912200.759155926.015422.30 3253.38
M39*438.47434.139912200.759157809.037145.26 4287.16
美制螺丝的扭力标准来自ASTM F606/606M

标准给出的扭力计算公式如下:

扭矩Mb(以美制为单位)=d3*抗拉强度UTS*0.165

扭矩Mb(以公制为单位)=d3*抗拉强度UTS*0.00014

美制2级螺丝扭力标准(精度2A):

螺纹规格牙底径2级抗拉强度UTS计算系数扭矩建议安装力
inch-牙数单位 inch单位psiin.lbs换算为NM in.lbs换算为NM
1-64UNC0.0538740000.1651.900.211.140.13
1-72UNF0.0559740000.1652.130.241.280.14
2-56UNC0.0642740000.1653.230.361.940.22
2-64UNF0.0668740000.1653.640.412.180.25
3-48UNC0.0734740000.1654.830.552.900.33
3-56UNF0.0771740000.1655.600.633.360.38
4-40UNC0.0814740000.1656.590.743.950.45
4-48UNF0.0864740000.1657.880.894.730.53
5-40UNC0.0944740000.16510.271.166.160.70
5-44UNF0.0972740000.16511.211.276.730.76
6-32UNC0.1740000.16512.211.387.330.83
6-40UNF0.1074740000.16515.131.719.081.02
8-32UNC0.1259740000.16524.372.7514.621.65
8-36UNF0.1301740000.16526.893.0416.131.82
10-24UNC0.1394740000.16533.083.7319.852.24
10-32UNF0.1519740000.16542.794.8325.682.90
12-24UNC0.1654740000.16555.256.2433.153.74
12-28UNF0.1724740000.16562.567.0637.544.24
1/4-20UNC0.1894740000.16582.969.3749.775.62
1/4-28UNF0.2064740000.165107.3612.1264.427.27
5/16-18UNC0.2452740000.165180.0020.32108.0012.19
5/16-240.2618740000.165219.0924.74131.4514.84
3/8-16UNC0.2992740000.165327.0436.92196.2222.15
3/8-24UNF0.3243740000.165416.4447.02249.8728.21
7/16-14UNC0.3511740000.165528.4659.66317.0735.80
7/16-20UNF0.3767740000.165652.6873.69391.6144.21
1/2-13UNC0.4069740000.165822.5892.87493.5555.72
1/2-20UNF0.4932740000.1651464.82165.38878.8999.23
9/16-12UNC0.4617740000.1651201.70135.68721.0281.41
9/16-18UNF0.495740000.1651480.92167.20888.55100.32
5/8-11UNC0.5152740000.1651669.72188.521001.83113.11
5/8-18UNF0.5575740000.1652115.68238.871269.41143.32
3/4-10UNC0.6291740000.1653040.01343.231824.00205.94
3/4-16UNF0.674740000.1653738.48422.092243.09253.25
7/8-9UNC0.7408740000.1654963.85560.432978.31336.26
7/8-14UNF0.7884740000.1655983.50675.563590.10405.33
1-8UNC0.8492740000.1657477.31844.214486.39506.53
1-14UNF0.9132740000.1659298.511049.835579.11629.90
美制5级螺栓扭力标准(精度2A):


美制8级螺栓扭力标准(精度2A): 

 

螺纹规格牙底径8级抗拉强度UTS计算系数扭矩建议安装力
单位 inch单位psiin.lbs换算为NMin.lbs换算为NM
1-64UNC0.05381500000.1653.850.442.310.26
1-72UNF0.05591500000.1654.320.492.590.29
2-56UNC0.06421500000.1656.550.743.930.44
2-64UNF0.06681500000.1657.380.834.430.50
3-48UNC0.07341500000.1659.791.115.870.66
3-56UNF0.07711500000.16511.341.286.810.77
4-40UNC0.08141500000.16513.351.518.010.90
4-48UNF0.08641500000.16515.961.809.581.08
5-40UNC0.09441500000.16520.822.3512.491.41
5-44UNF0.09721500000.16522.732.5713.641.54
6-32UNC0.11500000.16524.752.7914.851.68
6-40UNF0.10741500000.16530.663.4618.402.08
8-32UNC0.12591500000.16549.395.5829.633.35
8-36UNF0.13011500000.16554.506.1532.703.69
10-24UNC0.13941500000.16567.047.5740.234.54
10-32UNF0.15191500000.16586.759.7952.055.88
12-24UNC0.16541500000.165111.9912.6467.197.59
12-28UNF0.17241500000.165126.8214.3276.098.59
1/4-20UNC0.18941500000.165168.1618.99100.8911.39
1/4-28UNF0.20641500000.165217.6224.57130.5714.74
5/16-18UNC0.24521500000.165364.8741.19218.9224.72
5/16-240.26181500000.165444.1050.14266.4630.08
3/8-16UNC0.29921500000.165662.9274.85397.7544.91
3/8-24UNF0.32431500000.165844.1495.31506.4957.18
7/16-14UNC0.35111500000.1651071.19120.94642.7272.56
7/16-20UNF0.37671500000.1651323.01149.37793.8089.62
1/2-13UNC0.40691500000.1651667.39188.251000.44112.95
1/2-20UNF0.49321500000.1652969.23335.241781.54201.14
9/16-12UNC0.46171500000.1652435.87275.021461.52165.01
9/16-18UNF0.4951500000.1653001.86338.921801.12203.35
5/8-11UNC0.51521500000.1653384.56382.132030.74229.28
5/8-18UNF0.55751500000.1654288.54484.192573.13290.51
3/4-10UNC0.62911500000.1656162.18695.733697.31417.44
3/4-16UNF0.6741500000.1657578.01855.584546.80513.35
7/8-9UNC0.74081500000.16510061.861136.016037.11681.61
7/8-14UNF0.78841500000.16512128.721369.377277.23821.62
1-8UNC0.84921500000.16515156.721711.249094.031026.74
1-14UNF0.91321500000.16518848.332128.0311309.001276.82

发布于 2023-02-21 14:48

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