m14螺栓剪切力

M12螺栓的剪切力取决于多个因素，例如螺栓的材料、直径、表面状态、紧固力等。

一般来说，剪切力可以通过以下公式进行计算：
Fv = As ×σv
其中，Fv表示螺栓的剪切力，As表示剪切面积，σv表示材料的抗剪强度。

以一般碳素钢材质的M12螺栓为例，其抗剪强度大约为450MPa，剪切面积约为84.3平方毫米。

因此，其剪切力大约为38000牛顿左右。

需要注意的是，螺栓的实际剪切力可能会受到许多因素的影响，例如螺纹的质量、紧固力的大小等等。

因此，在实际应用中，需要根据具体情况进行合理的计算和评估，以确保螺栓的安全使用。

m10螺栓最大剪切力
【实用版】
目录
1.M10 螺栓概述
2.剪切力的定义及计算
3.M10 螺栓的最大剪切力
4.结论
正文
一、M10 螺栓概述
M10 螺栓是一种常用的螺栓规格，广泛应用于各种机械设备的连接和固定。

根据螺栓的材料、工艺和性能等级不同，M10 螺栓可以承受不同的剪切力。

二、剪切力的定义及计算
剪切力是指作用在物体上，使物体产生剪切变形的内力。

在机械工程中，剪切力通常用于计算螺栓等连接件在受力情况下的强度和稳定性。

剪切力的计算公式为：剪切力 = 剪切应力×剪切面积。

三、M10 螺栓的最大剪切力
根据国家标准，M10 螺栓的性能等级分为 8.8 级和 12.9 级。

其中，8.8 级 M10 螺栓的最大剪切力为 160MPa，12.9 级 M10 螺栓的最大剪切力约为 280MPa。

需要注意的是，这些数据仅供参考，实际应用中需考虑螺栓的材料、工艺、使用环境等因素，以确保连接件的安全性能。

四、结论
综上所述，M10 螺栓的最大剪切力取决于其性能等级，8.8 级 M10 螺栓的最大剪切力为 160MPa，12.9 级 M10 螺栓的最大剪切力约为
280MPa。

螺栓拧紧力矩标准M6~M24螺钉或螺母的拧紧力矩（操作者参考）未注明拧紧力矩要求时，参考下表(普通螺栓拧紧力矩)未注明拧紧力矩要求时，参考下表(普通螺栓拧紧力矩)公制螺栓扭紧力矩 Q/STB 12.521.5-2000范围：本标准适用于机械性能10.9级，规格从M6-M39的螺栓的扭紧力矩，对于使用尼龙垫圈、密封垫圈、其它非金属垫圈的螺栓，本标准不适用。

★对于设计图纸有明确力矩要求的，应按图纸要求执行。

套管螺母紧固力矩 Q/STB B07833-1998材料 HPb63-3Y2直通式压注油杯 Q/STB B07020-1998（螺纹M6、M8*1、M10*1）紧固力矩：0.3-0.5Kg.m。

安全阀 Q/STB B07029-1998（螺纹R1/8）紧固力矩：2.9-4.9Nm。

通气塞 Q/STB B07030-1998 （螺纹R1/4）紧固力矩：2.94-5.88Nm。

螺塞 Q/STB B07040-1998（公称直径08-10螺距1.25，12-36螺距1.5）螺栓（排气） Q/STB B07060-1998（M12*1.5）紧固力矩：58.8-78.4N.m。

软管（锥形密封）Q/STB B07100-1998软管（锥形密封） Q/STB B07123-1998（接头部螺母拧紧力矩）螺母（球头式管接头用） Q/STB B07201-1998 拧紧力矩：N.m 材料：（Q235）管接头螺母 Q/STB B07202-1998拧紧力矩（Q235 / HPb 59-1）铰接螺栓 Q/STB B07206-1998拧紧力矩（Q235）球头式端直通接头 Q/STB B07211-1998拧紧力矩（Q235 HPb 60-1 ）表中拧紧力矩适用于钢制接头管接头 Q/STB B07212-1998紧固力矩（区分代号为5、7的件材料Q235）套管螺母 Q/STB B07221-1998拧紧力矩（材料Q235）管接头 Q/STB B07230-1998拧入紧固力矩（Q235）弯头（带座） Q/STB B07235-1998 、 B07236-1998 拧紧力矩喉箍 Q/STB B07281-1998拧紧力矩U形管夹及座 Q/STB B07283-1998螺母的紧固力矩（区分代号 2、3使用）管夹 Q/STB B07289-1998(有效紧固直径φ25-φ232) 紧固力矩：8.8±05Nm套管接头 Q/STB B07290-1998套管螺母 Q/STB B07833-1998软管（空调器用） Q/STB B09488-1998。

螺栓剪切强度计算
MP
螺栓的需用剪切应力一般选用60
a
m m
M1螺栓的应力截面积：0.462
m m
M2螺栓的应力截面积：2.072
m m
M3螺栓的应力截面积：5.032
m m
M4螺栓的应力截面积：8.782
m m
M5螺栓的应力截面积：14.22
m m
M6螺栓的应力截面积：20.12
m m
M8螺栓的应力截面积：36.62
m m
M10螺栓的应力截面积：582
m m M12螺栓的应力截面积：84.32
m m M14螺栓的应力截面积：1152
m m M16螺栓的应力截面积：1572
m m M18螺栓的应力截面积：1922
m m M20螺栓的应力截面积：2452
m m M22螺栓的应力截面积：3032
m m M24螺栓的应力截面积：3532
m m M27螺栓的应力截面积：4592
m m M30螺栓的应力截面积：5612
m m M33螺栓的应力截面积：6942
m m M36螺栓的应力截面积：8172
m m M39螺栓的应力截面积：9762。

M1螺栓的应力截面积：0.46M2螺栓的应力截面积：2.07M3螺栓的应力截面积：5.03M4螺栓的应力截面积：8.78M5螺栓的应力截面积：14.2M6螺栓的应力截面积：20.1M8螺栓的应力截面积：36.6M10螺栓的应力截面积：58M12螺栓的应力截面积：84.3M14螺栓的应力截面积：115—1—M16螺栓的应力截面积：157M18螺栓的应力截面积：192M20螺栓的应力截面积：245M22螺栓的应力截面积：303M24螺栓的应力截面积：353M27螺栓的应力截面积：459M30螺栓的应力截面积：561M33螺栓的应力截面积：694M36螺栓的应力截面积：817M39螺栓的应力截面积：976二、螺栓代号含义8.8级螺栓的含义是螺栓强度等级标记代号由“•”隔开的两部分数字组成。

标记代号中“•”前数字部分的含义表示公称抗拉强度，碳钢：公制螺栓机械性能等级可分为：3.6、4.6、4.8、5.6、5.8、6.8、8.8、9.8 、13.51 、螺栓材质公称抗拉强度达800MPa级；（第一个8）2、螺栓材质的屈强比值为0.8；（第二个8就是0.8）— 2 —3、螺栓材质的公称屈服强度达800×0.8=640MPa级三、剪应力和拉引力关系实验证明，对于一般钢材，材料的许用剪应力与许用拉应力有如下关系：塑性材料[t]=0.6-0.8[b]；脆性材料[t]=0.8-1.0[b]四、零件应力取值机械设计或工程结构设计中允许零件或构件承受的最大应力值。

要判定零件或构件受载后的工作应力过高或过低，需要预先确定一个衡量的标准，这个标准就是许用应力。

凡是零件或构件中的工作应力不超过许用应力时，这个零件或构件在运转中是安全的，否则就是不安全的。

许用应力是机械设计和工程结构设计中的基本数据。

在实际应用中，许用应力值一般由国家工程主管部门根据安全和经济的原则，按材料的强度、载荷、环境情况、加工质量、计算精确度和零件或构件的重要性等加以规定。

强度极限/N 屈服极限/N 强度极限/N 屈服极限/N 强度极限/N 屈服极限/N 强度极限/N 屈服极限/N 强度极限/N 屈服极限/N 强度极限/N 屈服极限/N 强度极限/N 屈服极限/N 强度极限/N 屈服极限/N 强度极限/N 屈服极限/N 强度极限/N 屈服极限/N 强度极限/N 屈服极限/N拉力39.423.752.631.552.642.165.739.465.752.678.963.1105.184.1118.394.6131.4105.1157.7141.9剪切力39.423.752.631.552.642.165.739.465.752.678.963.1105.184.1118.394.6131.4105.1157.7141.9拉力32.119.342.825.742.834.253.532.153.542.864.251.385.668.596.377.0107.085.6128.4115.5剪切力32.119.342.825.742.834.253.532.153.542.864.251.385.668.596.377.0107.085.6128.4115.5拉力55.233.173.644.273.658.992.055.292.073.6110.488.3147.2117.8165.6132.5184.0147.2220.8198.7剪切力55.233.173.644.273.658.992.055.292.073.6110.488.3147.2117.8165.6132.5184.0147.2220.8198.7拉力32.119.342.825.742.834.253.532.153.542.864.251.385.668.596.377.0107.085.6128.4115.5剪切力32.119.342.825.742.834.253.532.153.542.864.251.385.668.596.377.0107.085.6128.4115.5拉力177.4106.5236.6141.9236.6189.3295.7177.4295.7236.6354.9283.9473.1378.5532.3425.8591.4473.1709.7638.7剪切力177.4106.5236.6141.9236.6189.3295.7177.4295.7236.6354.9283.9473.1378.5532.3425.8591.4473.1709.7638.7拉力144.486.7192.6115.5192.6154.0240.7144.4240.7192.6288.8231.1385.1308.1433.3346.6481.4385.1577.7519.9剪切力144.486.7192.6115.5192.6154.0240.7144.4240.7192.6288.8231.1385.1308.1433.3346.6481.4385.1577.7519.9拉力248.4149.0248.4149.0331.2265.0414.0248.4414.0331.2496.8397.4662.4529.9745.2596.2828.0662.4993.6894.2剪切力248.4149.0331.2198.7331.2265.0414.0248.4414.0331.2496.8397.4662.4529.9745.2596.2828.0662.4993.6894.2拉力144.486.7192.6115.5192.6154.0240.7144.4240.7192.6288.8231.1385.1308.1433.3346.6481.4385.1577.7519.9剪切力144.486.7192.6115.5192.6154.0240.7144.4240.7192.6288.8231.1385.1308.1433.3346.6481.4385.1577.7519.9拉力431.1258.7574.9344.9574.9459.9718.6431.1718.6574.9862.3689.81149.7919.81293.41034.71437.11149.71724.61552.1剪切力431.1258.7574.9344.9574.9459.9718.6431.1718.6574.9862.3689.81149.7919.81293.41034.71437.11149.71724.61552.1拉力350.9210.6467.9280.7467.9374.3584.9350.9584.9467.9701.9561.5935.8748.71052.8842.21169.8935.81403.71263.3剪切力350.9210.6467.9280.7467.9374.3584.9350.9584.9467.9701.9561.5935.8748.71052.8842.21169.8935.81403.71263.3拉力603.6362.2804.8482.9804.8643.81006.0603.61006.0804.81207.2965.81609.61287.71810.81448.62012.01609.62414.42173.0剪切力603.6362.2804.8482.9804.8643.81006.0603.61006.0804.81207.2965.81609.61287.71810.81448.62012.01609.62414.42173.0拉力350.9210.6467.9280.7467.9374.3584.9350.9584.9467.9701.9561.5935.8748.71052.8842.21169.8935.81403.71263.3剪切力350.9210.6467.9280.7467.9374.3584.9350.9584.9467.9701.9561.5935.8748.71052.8842.21169.8935.81403.71263.3拉力752.6451.51003.4602.11003.4802.71254.3752.61254.31003.41505.11204.12006.91605.52257.71806.22508.62006.93010.32709.3剪切力752.6451.51003.4602.11003.4802.71254.3752.61254.31003.41505.11204.12006.91605.52257.71806.22508.62006.93010.32709.3拉力612.6367.5816.7490.0816.7653.41020.9612.61020.9816.71225.1980.11633.51306.81837.71470.12041.91633.52450.22205.2剪切力612.6367.5816.7490.0816.7653.41020.9612.61020.9816.71225.1980.11633.51306.81837.71470.12041.91633.52450.22205.2拉力1053.6632.21404.8842.91404.81123.81756.01053.61756.01404.82107.21685.82809.62247.73160.82528.63512.02809.64214.43793.0剪切力1053.6632.21404.8842.91404.81123.81756.01053.61756.01404.82107.21685.82809.62247.73160.82528.63512.02809.64214.43793.0拉力612.6367.5816.7490.0816.7653.41020.9612.61020.9816.71225.1980.11633.51306.81837.71470.12041.91633.52450.22205.2剪切力612.6367.5816.7490.0816.7653.41020.9612.61020.9816.71225.1980.11633.51306.81837.71470.12041.91633.52450.22205.2拉力1217.1730.31622.9973.71622.91298.32028.61217.12028.61622.92434.31947.43245.72596.63651.42921.14057.13245.74868.64381.7剪切力1217.1730.31622.9973.71622.91298.32028.61217.12028.61622.92434.31947.43245.72596.63651.42921.14057.13245.74868.64381.7拉力990.7594.41320.9792.61320.91056.71651.2990.71651.21320.91981.41585.12641.92113.52972.12377.73302.32641.93962.83566.5剪切力990.7594.41320.9792.61320.91056.71651.2990.71651.21320.91981.41585.12641.92113.52972.12377.73302.32641.93962.83566.5拉力1704.01022.42272.01363.22272.01817.62840.01704.02840.02272.03408.02726.44544.03635.25112.04089.65680.04544.05680.05112.0剪切力1704.01022.42272.01363.22272.01817.62840.01704.02840.02272.03408.02726.44544.03635.25112.04089.65680.04544.05680.05112.0拉力990.7594.41320.9792.61320.91056.71651.2990.71651.21320.91981.41585.12641.92113.52972.12377.73302.32641.93962.83566.5剪切力990.7594.41320.9792.61320.91056.71651.2990.71651.21320.91981.41585.12641.92113.52972.12377.73302.32641.93962.83566.5拉力1722.91033.72297.11378.32297.11837.72871.41722.92871.42297.13445.72756.64594.33675.45168.64134.95742.94594.36891.46202.3剪切力1722.91033.72297.11378.32297.11837.72871.41722.92871.42297.13445.72756.64594.33675.45168.64134.95742.94594.36891.46202.3拉力1402.3841.41869.81121.91869.81495.82337.21402.32337.21869.82804.72243.73739.52991.64207.03365.64674.43739.55609.35048.4剪切力1402.3841.41869.81121.91869.81495.82337.21402.32337.21869.82804.72243.73739.52991.64207.03365.64674.43739.55609.35048.4拉力2412.01447.23216.01929.63216.02572.84020.02412.04020.03216.04824.03859.26432.05145.67236.05788.88040.06432.09648.08683.2剪切力2412.01447.23216.01929.63216.02572.84020.02412.04020.03216.04824.03859.26432.05145.67236.05788.88040.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095000.057000.095000.076000.0114000.091200.0152000.0121600.0171000.0136800.0190000.0152000.0228000.0205200.0拉力117120.070272.0156160.093696.0156160.0124928.0195200.0117120.0195200.0156160.0234240.0187392.0312320.0249856.0351360.0281088.0390400.0312320.0468480.0421632.0剪切力117120.070272.0156160.093696.0156160.0124928.0195200.0117120.0195200.0156160.0234240.0187392.0312320.0249856.0351360.0281088.0390400.0312320.0468480.0421632.0拉力68093.040855.890790.754474.490790.772632.6113488.468093.0113488.490790.7136186.0108948.8181581.4145265.1204279.1163423.3226976.7181581.4272372.1245134.9剪切力68093.040855.890790.754474.490790.772632.6113488.468093.0113488.490790.7136186.0108948.8181581.4145265.1204279.1163423.3226976.7181581.4272372.1245134.9拉力117120.070272.0156160.093696.0156160.0124928.0195200.0117120.0195200.0156160.0234240.0187392.0312320.0249856.0351360.0281088.0390400.0312320.0468480.0421632.0剪切力117120.070272.0156160.093696.0156160.0124928.0195200.0117120.0195200.0156160.0234240.0187392.0312320.0249856.0351360.0281088.0390400.0312320.0468480.0421632.0拉力68093.040855.890790.754474.490790.772632.6113488.468093.0113488.490790.7136186.0108948.8181581.4145265.1204279.1163423.3226976.7181581.4272372.1245134.9剪切力68093.040855.890790.754474.490790.772632.6113488.468093.0113488.490790.7136186.0108948.8181581.4145265.1204279.1163423.3226976.7181581.4272372.1245134.9常用螺栓强度/屈服极限一览表353螺栓规格螺栓型号应力截面积工况受力形式 3.6 4.6 4.8 5.6 5.8 6.88.8（D<=M16)8.8（D>M16)9.810.8M1M2M30.46M142.075.0311515719224530312.9性能等级动载荷不控制预紧力控制预紧力不控制预紧力静载荷动载荷静载荷动载荷静载荷静载荷动载荷静载荷动载荷静载荷动载荷控制预紧力不控制预紧力不控制预紧力控制预紧力不控制预紧力控制预紧力不控制预紧力控制预紧力不控制预紧力控制预紧力不控制预紧力控制预紧力不控制预紧力控制预紧力不控制预紧力控制预紧力不控制预紧力控制预紧力M33M36M39M24M27M30M4M5M6M8M10M12M16M18M20M22不控制预紧力控制预紧力4595616948.7814.220.136.65884.3不控制预紧力控制预紧力控制预紧力不控制预紧力控制预紧力不控制预紧力控制预紧力不控制预紧力控制预紧力不控制预紧力控制预紧力不控制预紧力控制预紧力动载荷静载荷动载荷静载荷动载荷静载荷动载荷静载荷动载荷静载荷动载荷静载荷动载荷静载荷动载荷静载荷动载荷静载荷动载荷静载荷动载荷静载荷动载荷静载荷静载荷动载荷静载荷动载荷静载荷动载荷静载荷动载荷静载荷动载荷静载荷动载荷动载荷静载荷动载荷静载荷动载荷静载荷动载荷静载荷静载荷动载荷静载荷动载荷动载荷静载荷动载荷静载荷静载荷动载荷静载荷动载荷静载荷动载荷静载荷动载荷 在本表的计算中，当D<M16时：不控制预紧力AND静载荷安全系数取3.5，不控制预紧力AND动载荷安全系数取4.3，控制预紧力AND静载荷安全系数取2.5，控制预紧力AND动载荷安全系数取4.3；当D》M16时：不控制预紧力AND静载荷安全系数取2.5，不控制预紧力AND动载荷安全系数取4.3，控制预紧力AND静载荷安全系数取2.5，控制预紧力AND动载荷安全系数取4.3静载荷动载荷静载荷动载荷静载荷动载荷静载荷动载荷817976控制预紧力不控制预紧力控制预紧力不控制预紧力。

m10螺栓最大剪切力
摘要：
1.M10 螺栓概述
2.剪切力的定义及计算
3.M10 螺栓的最大剪切力
4.结论
正文：
一、M10 螺栓概述
M10 螺栓是一种常用的螺栓规格，广泛应用于各种机械设备的连接和固定。

根据螺栓的材料、工艺和性能等级不同，M10 螺栓的最大剪切力也会有所差异。

二、剪切力的定义及计算
剪切力是指在物体内部，由于外力作用导致物体发生变形时，物体内部各部分之间产生的相互作用内力。

剪切力作用在物体的某一截面上，使其产生切应变，通常用单位面积上的内力来表示。

剪切力的计算公式为：剪切应力= 剪切力/ 截面积。

三、M10 螺栓的最大剪切力
根据常见的8.8 级M10 螺栓的性能数据，其最大剪切力为160MPa。

需要注意的是，这个值是在理想状态下，即螺栓材料均匀、无缺陷，且在室温条件下测得的。

在实际应用中，由于螺栓材料、工艺和环境的差异，实际最大剪切力可能会有所降低。

四、结论
综上所述，M10 螺栓的最大剪切力为160MPa。

10.9级m10螺栓最大剪切力10.9级M10螺栓最大剪切力是指M10螺栓在10.9级强度等级下能承受的最大剪切力。

在解答这个问题之前，我们先来了解一下螺栓的基本概念和强度等级的含义。

螺栓是一种常用的紧固连接元件，通常由螺杆和螺母组成。

它们通过螺纹配合将两个或多个零件固定在一起。

螺栓的强度等级是指螺栓材料的强度与应力限制之间的关系，用于衡量螺栓的强度和承载力。

常见的强度等级包括4.6、4.8、8.8、10.9和12.9等级。

而M10是一种常见的螺栓尺寸，代表螺栓杆的直径为10毫米。

因为强度等级为10.9级，所以我们可以确定这种螺栓的材料强度为10倍的螺栓材料的拉伸强度，而螺栓的抗拉伸强度是指它能承受的最大静态拉力。

然而，我们需要计算的是M10螺栓的最大剪切力。

螺栓的剪切力是指螺栓所承受的力在螺栓截面上的剪切应力。

剪切应力是垂直于剪切面的内部应力，是相对于两个相接触的面之间的相对运动而产生的。

为了计算M10螺栓的最大剪切力，我们需要使用一个公式：Fv = As ×τ其中，Fv是螺栓的最大剪切力，As是螺栓截面的剪切面积，τ是螺栓所承受的最大剪切应力。

螺栓的截面面积可以通过以下公式计算：As = π×(d/2)²其中，d是螺栓的直径。

而螺栓所承受的最大剪切应力可以通过以下公式计算：τ= 0.6 ×Fp / As其中，Fp是螺栓的抗拉伸强度。

根据以上公式，我们可以开始计算M10螺栓的最大剪切力。

首先，我们需要确定M10螺栓的直径d。

由于M10代表的是螺栓杆的直径，所以d = 10毫米。

接下来，我们可以计算螺栓截面的剪切面积As。

As = π×(10/2)²= 3.14 ×5²= 3.14 ×25= 78.5平方毫米然后，我们需要确定螺栓的抗拉伸强度Fp。

根据10.9级的强度等级，螺栓的抗拉伸强度为10倍的螺栓材料的拉伸强度。

m14对拉螺栓的容许荷载螺栓是一种常用的紧固件，它通过拉伸力来使连接处的零件紧密固定。

M14是螺栓的规格尺寸，表示螺栓的直径为14毫米。

对于M14螺栓来说，容许荷载是指该螺栓所能承受的最大拉伸力。

M14螺栓的容许荷载受到多种因素的影响，包括螺栓材料的强度、螺栓的螺纹类型、螺栓的使用环境等。

其中，螺栓材料的强度是决定螺栓容许荷载的关键因素。

常用的螺栓材料包括碳钢、合金钢和不锈钢等。

不同材料的螺栓具有不同的强度，因此其容许荷载也不同。

一般来说，碳钢螺栓的强度较低，合金钢螺栓的强度较高，而不锈钢螺栓则具有耐腐蚀性能。

在使用螺栓时，我们需要根据实际需求选择适当的螺栓材料和规格。

对于M14螺栓，我们可以通过查阅相关标准或参考手册来获取其容许荷载的数值。

这些数值通常以N（牛顿）为单位，表示螺栓能够承受的最大拉伸力。

需要注意的是，螺栓的容许荷载是在特定条件下确定的，例如温度、环境湿度等。

因此，在实际应用中，我们需要根据具体情况进行合理的选用和计算。

螺栓的安装和使用也会影响其容许荷载。

正确的安装方法和使用要求是确保螺栓能够正常工作的重要保障。

在安装过程中，我们需要确保螺栓与连接件之间的接触面光滑、无杂质，并适当加装垫片或垫圈以保证紧固效果。

在使用过程中，我们需要避免超负荷、过度紧固或过度松动等情况的发生，以免对螺栓产生不利影响。

总结起来，M14螺栓的容许荷载是其能够承受的最大拉伸力，受到材料强度、螺纹类型、使用环境等因素的影响。

在应用过程中，我们需要选择合适的螺栓材料和规格，并遵循正确的安装和使用方法，以确保螺栓的可靠性和安全性。

对于具体的容许荷载数值，可以参考相关标准或参考手册进行查询。

109级m10螺栓最大剪切力
要计算螺栓的最大剪切力，我们需要知道螺栓的材料和直径。

假设螺栓的材料为普通碳钢（强度可以控制在350MPa），直径为10mm。

螺栓的最大剪切力可以通过以下公式计算：
最大剪切力 = 剪切强度 * 截面积
截面积可以通过以下公式计算：
截面积= π * (直径/2)^2
剪切强度可以根据螺栓材料查表获得。

假设螺栓的剪切强度为270MPa，代入计算得：
截面积= π * (10/2)^2 = 78.54mm^2
最大剪切力 = 270MPa * 78.54mm^2 = 21262.8N
因此，109级M10螺栓的最大剪切力为21262.8N。

需要注意的是，此计算仅适用于假设的材料和直径条件下。

如果螺栓的材料和直径不同，最大剪切力也会有所变化。