丝锥扭矩计算表
各种螺栓扭矩标准
M6~M24螺钉或螺母的拧紧力矩（操作者参考）
螺纹规格牙距螺纹底孔直径
M2 标准0.40 1.60 细牙0.25 1.75
M2.5 标准0.45 2.10 细牙0.35 2.20
M2.6 标准0.45 2.20 细牙0.35 2.25
M3 标准0.50 2.60 细牙0.35 2.70
M3.5 标准0.60 3.00 细牙0.35 3.20
M4 标准0.70 3.40 细牙0.50 3.60
M5 标准0.80 4.20 细牙0.50 4.60
M6 标准 1.00 5.10 细牙0.75 5.30
M8 标准 1.25 6.80 细牙 1.00 7.10 细牙0.75 7.30
M10 标准 1.50 8.60 细牙1.25 8.90 细牙1.00 9.10 细牙0.75 9.30
M12 标准 1.75 10.40 细牙1.50 10.60 细牙1.25 10.90 细牙1.00 11.10
M14 标准 2.00 12.20 细牙1.50 12.60 细牙1.00 13.10
M16 标准 2.00 14.20 细牙1.50 14.60 细牙1.00 15.10
M18 标准 2.50 15.70 细牙1 2.00 16.20 细牙2 1.50 16.60 细牙1.00 17.10
一般切削丝锥底孔尺寸为：D=d1-P 以M12x1.75为例，底孔尺寸D=12-1.75=10.25
而挤压对底孔要求较为苛刻，一般来说，提供一个十分合适的底孔是很困难的，需要不断的试切。
不过，总的来说可按以下公式来计算大致底孔尺寸：D=d1-0.49P 仍以M12x1.75为例，底孔尺寸D=12-0.49*1.75=11.15。
标准螺纹、螺栓、螺母拧紧扭矩表
标准螺纹、螺栓、螺母拧紧扭矩表每一种螺丝的扭紧用的力道大小，也就是扭矩都有不同的国家标准。
而扭螺丝，则会用到一项工具，那就是扳手（好吧，大家都知道），常见的扳手主要有：呆扳手、活动扳手、两用扳手、梅花扳手、内六角扳手、套筒扳手、力矩扳手等......扭螺丝很平常，但螺丝紧固的质量好坏，则很有可能会影响到设备的安全运行。
螺栓扭矩国家标准（kg/m)螺栓直径尺寸日本标准德国标准M6 10 1.2M8 13 2.5 2.4M10 17 5.5 4.6M12 19 9 8M14 22 14M16 24 23.5 19.9M18 27 32M20 30 47 38.8M22 32 66.5M24 36 82.5 67M27 41 120 98.3M30 46 155 134M33 50 200M36 55 250 233M39 60 300 303M42 65 373M48 75 561M52 725M56 85 907M56X4 957M64 95 1360M64X4 1450M72 105 2090M76X4 2460M80 115 2870M90 130 4110M100 145 5670下表螺栓扭矩表是德国工业标准，螺栓扭矩表中扭矩为螺栓达到屈服极限的70%时所测定。
强度等级 4.8 6.88.810.912.9最小破断强度392Mpa588Mpa784Mpa941Mpa1176Mpa材质一般构造用钢机械构造用钢铬铝合金钢镍铬铝合金钢镍铬钼合金钢螺栓螺母对扭矩值扭矩值扭矩值扭矩值扭矩值Nm Nm Nm Nm Nm边M14226998137165225M162498137206247353M1827127206284341480M2030176296402569480M2232225333539765911M24363144706869811176M2741441637102914721764M3046588882122519622352M33507351127147020602450M36559801470176424532940M396011761764215629433626M426515192352274438264606M457017642744313644155390M487522543430392055926664M528027444116470465738330M5685352851495978843710290M60904018597877421079113230M649549987448882012600-M68100568485261078015400-M72105646898001264218060-M761107350107801470021000-M801158143122501813025900-M851208820137202205031500-M9013010584161702450035000-M1001451372020090---M1101551636624990---M1201751989429890---例如：M48,8.8级螺栓，则锁紧力矩为：注：建议锁紧力矩值为：表中数值×(70-80)% 3920×80%=3136Nm 拆松力矩为锁紧力矩的1.5-2.5倍。
螺纹标准拧紧力矩
kgm 0.8±0.2 1.9±0.5 4.1±0.6 8.4±0.8 密封面
加宽式螺母的拧紧扭矩表 ★ 没有专门说明的加宽螺母拧紧扭紧扭矩列于下表
螺纹直径
mm
14 18 22 24 30 33 36 42
截面宽度
mm
19 24 27 32 36 41 46 55
Nm
24.5±4.9 49±19.6 78.5±19.6 137.3±29.4 176.5±29.4 196.1±49 245.2±49 294.2±49
Nm
13.2±1.4 31±3 66±7
113±10 177±19 279±30 382±39 549±59 745±83 927±103 1320±140 1720±190 2210±240 2750±290 3290±340
螺栓螺纹直径
mm 6 8 10 12
开口宽度
mm 10 13 14 27
14.3 17.5
-
1–1331166
−1166UUNNF
1-14UNS
11 3–3 1166
-−1122UUNNFF
-
-
-
20.7 25.4 30.3
-
00-14
8±2
1/4
12±2
3/8
15±2
1/2
24±4
3/4
36±5
1
60±9
拧紧扭矩 拧紧扭矩 拧紧扭矩
kgm 1.02±0.20 2.45±0.41 4.38±0.61 7.85±1.22
kgm 0.81±0.20 1.02±0.20 1.22±0.20 2.45±0.41 3.67±0.51
kgm 0.31±0.10 0.81±0.20 1.22±0.20 1.53±0.41 2.45±0.41 3.67±0.51 6.12±0.92
螺栓拧紧力矩表
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。
攻丝扭矩计算
攻丝所需扭矩的简单计算
螺距
P
5
丝锥大径
d1
52
材料比切力
Ks
2500
攻丝扭矩
Байду номын сангаас
Md
812.5
序号 1 2 3 4 5 6 7 8 9 10 11 12 13 14
材料类型 抗拉强度＜850N/mm2的碳钢、 抗拉强度＜1100N/mm2的碳钢、 抗拉强度＜1400N/mm2的碳钢、
灰口铸铁 球墨铸铁 铝合金
灰口铸铁 球墨铸铁 铝合金
黄铜 m2的奥氏体、铁素体及部分马氏体不锈钢 00N/mm2的马氏体、奥-铁双相不锈钢 ＜1400N/mm2的沉淀硬化不锈钢
镍合金及钛合金 度＜44HRC的淬硬钢、高硬钢 度＜55HRC的淬硬钢、高硬钢 度＜60HRC的淬硬钢、高硬钢
Ks 2500N/mm2 3200N/mm2 3600N/mm2 2000N/mm2 2500N/mm2 700N/mm2 720N/mm2 3200N/mm2 3600N/mm2 4000N/mm2 4000N/mm2 4100N/mm2 4700N/mm2 5000N/mm2
黄铜 抗拉强度＜850N/mm2的奥氏体、铁素体及
抗拉强度＜1100N/mm2的马氏体、奥抗拉强度＜1400N/mm2的沉淀硬 镍合金及钛合金 洛氏硬度＜44HRC的淬硬钢、 洛氏硬度＜55HRC的淬硬钢、 洛氏硬度＜60HRC的淬硬钢、
材料类型 度＜850N/mm2的碳钢、合金钢 度＜1100N/mm2的碳钢、合金钢 度＜1400N/mm2的碳钢、合金钢
螺纹拧紧力矩计算
螺纹联接的拧紧力矩计算M t＝K×P0×d×10－3 N.mK:拧紧力系数d：螺纹公称直径P0：预紧力P0＝σ0×A s A s也可由下面表查出A s＝π×d s2/4 d s:螺纹部分危险剖面的计算直径d s＝（d2＋d3）/2 d3= d1－H/6 H：螺纹牙的公称工作高度σ0＝（0.5～0.7）σs σs――――螺栓材料的屈服极限N/mm2（与强度等级相关，材质决定）K值查表：(K值计算公式略)K值摩擦表面状况有润滑无润滑精加工表面0.10 0.12一般加工表面0.13~0.15 0.18~0.21表面氧化0.20 0.24镀锌0.18 0.22 干燥的粗加工表面 0.26~0.3 σs查表：螺纹性能等级 3.6 4.6 4.8 5.6 5.8 6.88.89.810.912.9σs 或σ0.2N/mm21802403203004004806407209001080As查表：螺纹公称直径d/mm3 3.545678101214161820222427303336公称应力截面积As/mm2 5.036.788.7814.220.128.936.65884.3115157192245303353459561694817通过计算得到螺栓联接拧紧力矩如下表所示：表面被氧化（无润滑）的螺纹联接的拧紧力矩值（单位：N.m）性能等级 3.6 4.6 4.8 5.6 5.8 6.88.89.810.912.9螺纹直径d/mm min max min max min max min max min max min max min max min max min max min max 30.330.460.430.610.580.810.540.760.72 1.010.87 1.22 1.16 1.62 1.30 1.83 1.63 2.28 1.96 2.74 3.50.510.720.680.960.91 1.280.85 1.20 1.14 1.59 1.37 1.91 1.82 2.55 2.05 2.87 2.56 3.59 3.08 4.31 40.76 1.06 1.01 1.42 1.35 1.89 1.26 1.77 1.69 2.36 2.02 2.83 2.70 3.78 3.03 4.25 3.79 5.31 4.55 6.375 1.53 2.15 2.04 2.86 2.73 3.82 2.56 3.58 3.41 4.77 4.09 5.73 5.457.63 6.138.597.6710.749.2012.886 2.60 3.65 3.47 4.86 4.63 6.48 4.34 6.08 5.798.10 6.959.739.2612.9710.4214.5913.0218.2315.6321.887 4.37 6.12 5.838.167.7710.887.2810.209.7113.5911.6516.3115.5421.7517.4824.4721.8530.5926.2236.718 6.328.858.4311.8111.2415.7410.5414.7614.0519.6816.8723.6122.4931.4825.3035.4231.6244.2737.9553.13 1012.5317.5416.7023.3922.2731.1820.8829.2327.8438.9833.4146.7744.5462.3650.1170.1662.6487.7075.17105.24 1221.8530.5929.1340.7938.8554.3836.4250.9848.5667.9858.2781.5877.69108.7787.40122.36109.25152.95131.10183.54 1434.7848.6946.3764.9261.8286.5557.9681.1477.28108.1992.74129.83123.65173.11139.10194.75173.88243.43208.66292.12 1654.2675.9672.35101.2896.46135.0590.43126.60120.58168.81144.69202.57192.92270.09217.04303.85271.30379.81325.56455.78 1874.65104.5199.53139.35132.71185.79124.42174.18165.89232.24199.07278.69265.42371.59298.60418.04373.25522.55447.90627.06 20105.84148.18141.12197.57188.16263.42176.40246.96235.20329.28282.24395.14376.32526.85423.36592.70529.20740.88635.04889.06 22143.99201.58191.98268.77255.97358.36239.98335.97319.97447.96383.96537.55511.95716.73575.94806.32719.931007.90863.911209.48 24183.00256.19243.99341.59325.32455.45304.99426.99406.66569.32487.99683.18650.65910.91731.981024.77914.981280.971097.971537.16 27267.69374.76356.92499.69475.89666.25446.15624.61594.86832.81713.84999.37951.781332.501070.761499.061338.441873.821606.132248.59 30363.53508.94484.70678.59646.27904.78605.88848.23807.841130.98969.411357.171292.541809.561454.112035.761817.642544.702181.173053.64 33494.68692.56659.58923.41879.441231.21824.471154.261099.301539.011319.161846.821758.872462.421978.732770.232473.423462.782968.104155.34 36635.30889.42847.071185.891129.421581.191058.831482.361411.781976.491694.132371.782258.843162.382541.203557.683176.504447.093811.805336.51表面被氧化（有润滑）的螺纹联接的拧紧力矩值（单位：N.m）性能等级 3.6 4.6 4.8 5.6 5.8 6.88.89.810.912.9螺纹直径d/mm min max min max min max min max min max min max min max min max min max min max 30.270.380.360.510.480.680.450.630.600.850.72 1.010.97 1.35 1.09 1.52 1.36 1.90 1.63 2.28 3.50.430.600.570.800.76 1.060.71 1.000.95 1.33 1.14 1.59 1.52 2.13 1.71 2.39 2.14 2.99 2.56 3.59 40.630.890.84 1.18 1.12 1.57 1.05 1.48 1.40 1.97 1.69 2.36 2.25 3.15 2.53 3.54 3.16 4.43 3.79 5.315 1.28 1.79 1.70 2.39 2.27 3.18 2.13 2.98 2.84 3.98 3.41 4.77 4.54 6.36 5.117.16 6.398.957.6710.746 2.17 3.04 2.89 4.05 3.86 5.40 3.62 5.07 4.82 6.75 5.798.107.7210.818.6812.1610.8515.2013.0218.237 3.64 5.10 4.86 6.80 6.479.06 6.078.508.0911.339.7113.5912.9518.1314.5720.3918.2125.4921.8530.598 5.277.387.039.849.3713.128.7812.3011.7116.4014.0519.6818.7426.2321.0829.5126.3536.8931.6244.27 1010.4414.6213.9219.4918.5625.9817.4024.3623.2032.4827.8438.9837.1251.9741.7658.4652.2073.0862.6487.70 1218.2125.4924.2833.9932.3745.3230.3542.4940.4656.6548.5667.9864.7490.6472.84101.9791.04127.46109.25152.95 1428.9840.5738.6454.1051.5272.1348.3067.6264.4090.1677.28108.19103.04144.26115.92162.29144.90202.86173.88243.43 1645.2263.3060.2984.4080.38112.5475.36105.50100.48140.67120.58168.81160.77225.08180.86253.21226.08316.51271.30379.81 1862.2187.0982.94116.12110.59154.83103.68145.15138.24193.54165.89232.24221.18309.66248.83348.36311.04435.46373.25522.55 2088.20123.48117.60164.64156.80219.52147.00205.80196.00274.40235.20329.28313.60439.04352.80493.92441.00617.40529.20740.88 22119.99167.98159.98223.98213.31298.64199.98279.97266.64373.30319.97447.96426.62597.27479.95671.93599.94839.92719.931007.90 24152.50213.49203.33284.66271.10379.55254.16355.82338.88474.43406.66569.32542.21759.09609.98853.98762.481067.47914.981280.97 27223.07312.30297.43416.40396.58555.21371.79520.51495.72694.01594.86832.81793.151110.41892.301249.211115.371561.521338.441873.82 30302.94424.12403.92565.49538.56753.98504.90706.86673.20942.48807.841130.981077.121507.971211.761696.461514.702120.581817.642544.70 33412.24577.13549.65769.51732.861026.01687.06961.88916.081282.511099.301539.011465.732052.021648.942308.522061.182885.652473.423462.78 36529.42741.18705.89988.24941.181317.66882.361235.301176.481647.071411.781976.491882.372635.322117.662964.732647.083705.913176.504447.09镀锌（无润滑）的螺纹联接的拧紧力矩值（单位：N.m）性能等级 3.6 4.6 4.8 5.6 5.8 6.88.89.810.912.9螺纹直径d/mm min max min max min max min max min max min max min max min max min max min max 30.300.420.400.560.530.740.500.700.660.930.80 1.12 1.06 1.49 1.20 1.67 1.49 2.09 1.79 2.51 3.50.470.660.630.880.84 1.170.78 1.10 1.04 1.46 1.25 1.75 1.67 2.34 1.88 2.63 2.35 3.29 2.82 3.95 40.700.970.93 1.30 1.24 1.73 1.16 1.62 1.55 2.16 1.85 2.60 2.47 3.46 2.78 3.89 3.48 4.87 4.17 5.845 1.41 1.97 1.87 2.62 2.50 3.50 2.34 3.28 3.12 4.37 3.75 5.25 5.007.00 5.627.877.039.848.4311.816 2.39 3.34 3.18 4.46 4.25 5.94 3.98 5.57 5.317.43 6.378.918.4911.899.5513.3711.9416.7214.3320.067 4.01 5.61 5.347.487.129.97 6.689.358.9012.4610.6814.9514.2419.9416.0222.4320.0328.0424.0333.658 5.808.127.7310.8210.3114.439.6613.5312.8818.0415.4621.6420.6128.8623.1932.4728.9940.5834.7848.70 1011.4816.0815.3121.4420.4228.5819.1426.8025.5235.7330.6242.8740.8357.1645.9464.3157.4280.3968.9096.47 1220.0328.0426.7137.3935.6149.8533.3846.7444.5162.3153.4174.7871.2299.7080.12112.17100.15140.21120.18168.25 1431.8844.6342.5059.5156.6779.3453.1374.3870.8499.1885.01119.01113.34158.68127.51178.52159.39223.15191.27267.78 1649.7469.6366.3292.8488.42123.7982.90116.05110.53154.74132.63185.69176.84247.58198.95278.53248.69348.16298.43417.80 1868.4395.8091.24127.73121.65170.31114.05159.67152.06212.89182.48255.47243.30340.62273.72383.20342.14479.00410.57574.80 2097.02135.83129.36181.10172.48241.47161.70226.38215.60301.84258.72362.21344.96482.94388.08543.31485.10679.14582.12814.97 22131.99184.78175.98246.38234.64328.50219.98307.97293.30410.63351.96492.75469.29657.00527.95739.13659.93923.91791.921108.69 24167.75234.84223.66313.13298.21417.50279.58391.41372.77521.88447.32626.25596.43835.00670.98939.38838.731174.221006.471409.06 27245.38343.53327.18458.05436.23610.73408.97572.56545.29763.41654.35916.09872.471221.45981.531374.141226.911717.671472.292061.20 30333.23466.53444.31622.04592.42829.38555.39777.55740.521036.73888.621244.071184.831658.761332.941866.111666.172332.641999.402799.17 33453.46634.84604.61846.46806.151128.61755.771058.071007.691410.761209.231692.921612.302257.221813.842539.372267.303174.222720.763809.06 36582.36815.30776.481087.071035.301449.42970.601358.831294.131811.781552.952174.142070.602898.852329.433261.202911.794076.503494.154891.80镀锌（有润滑）的螺纹联接的拧紧力矩值（单位：N.m）性能等级 3.6 4.6 4.8 5.6 5.8 6.88.89.810.912.9螺纹直径d/mm min max min max min max min max min max min max min max min max min max min max 30.240.340.330.460.430.610.410.570.540.760.650.910.87 1.220.98 1.37 1.22 1.71 1.47 2.05 3.50.380.540.510.720.680.960.640.900.85 1.20 1.03 1.44 1.37 1.91 1.54 2.15 1.92 2.69 2.31 3.23 40.570.800.76 1.06 1.01 1.420.95 1.33 1.26 1.77 1.52 2.12 2.02 2.83 2.28 3.19 2.84 3.98 3.41 4.785 1.15 1.61 1.53 2.15 2.04 2.86 1.92 2.68 2.56 3.58 3.07 4.29 4.09 5.73 4.60 6.44 5.758.05 6.909.666 1.95 2.74 2.60 3.65 3.47 4.86 3.26 4.56 4.34 6.08 5.217.29 6.959.737.8110.949.7713.6811.7216.417 3.28 4.59 4.37 6.12 5.838.16 5.467.657.2810.208.7412.2411.6516.3113.1118.3516.3922.9419.6627.538 4.74 6.64 6.328.858.4311.817.9111.0710.5414.7612.6517.7116.8723.6118.9726.5623.7233.2028.4639.84 109.4013.1512.5317.5416.7023.3915.6621.9220.8829.2325.0635.0833.4146.7737.5852.6246.9865.7756.3878.93 1216.3922.9421.8530.5929.1340.7927.3138.2436.4250.9843.7061.1858.2781.5865.5591.7781.94114.7298.33137.66 1426.0836.5134.7848.6946.3764.9243.4760.8657.9681.1469.5597.3792.74129.83104.33146.06130.41182.57156.49219.09 1640.6956.9754.2675.9672.35101.2867.8294.9590.43126.60108.52151.93144.69202.57162.78227.89203.47284.86244.17341.83 1855.9978.3874.65104.5199.53139.3593.31130.64124.42174.18149.30209.02199.07278.69223.95313.53279.94391.91335.92470.29 2079.38111.13105.84148.18141.12197.57132.30185.22176.40246.96211.68296.35282.24395.14317.52444.53396.90555.66476.28666.79 22107.99151.18143.99201.58191.98268.77179.98251.97239.98335.97287.97403.16383.96537.55431.96604.74539.95755.92647.94907.11 24137.25192.14183.00256.19243.99341.59228.74320.24304.99426.99365.99512.39487.99683.18548.99768.58686.23960.72823.481152.87 27200.77281.07267.69374.76356.92499.69334.61468.46446.15624.61535.38749.53713.84999.37803.071124.291003.831405.371204.601686.44 30272.65381.70363.53508.94484.70678.59454.41636.17605.88848.23727.061017.88969.411357.171090.581526.821363.231908.521635.882290.23 33371.01519.42494.68692.56659.58923.41618.35865.70824.471154.26989.371385.111319.161846.821484.052077.671855.062597.092226.073116.50 36476.47667.06635.30889.42847.071185.89794.121111.771058.831482.361270.601778.841694.132371.781905.902668.262382.373335.322858.854002.38干燥的粗加工表面的螺纹联接的拧紧力矩值（单位：N.m）性能等级 3.6 4.6 4.8 5.6 5.8 6.88.89.810.912.9螺纹直径d/mm min max min max min max min max min max min max min max min max min max min max 30.350.570.470.760.63 1.010.590.950.78 1.270.94 1.52 1.26 2.03 1.41 2.28 1.77 2.85 2.12 3.42 3.50.560.900.74 1.200.99 1.590.93 1.49 1.23 1.99 1.48 2.39 1.97 3.19 2.22 3.59 2.78 4.48 3.33 5.38 40.82 1.33 1.10 1.77 1.46 2.36 1.37 2.21 1.83 2.95 2.19 3.54 2.92 4.72 3.29 5.31 4.11 6.64 4.937.975 1.66 2.68 2.22 3.58 2.95 4.77 2.77 4.47 3.69 5.96 4.437.16 5.919.54 6.6510.748.3113.429.9716.106 2.82 4.56 3.76 6.08 5.028.10 4.707.60 6.2710.137.5312.1610.0316.2111.2918.2314.1122.7916.9327.357 4.737.65 6.3110.208.4213.597.8912.7410.5216.9912.6220.3916.8327.1918.9430.5923.6738.2328.4045.888 6.8511.079.1414.7612.1819.6811.4218.4515.2324.6018.2729.5124.3639.3527.4144.2734.2655.3441.1166.41 1013.5721.9218.1029.2324.1338.9822.6236.5430.1648.7236.1958.4648.2677.9554.2987.7067.86109.6281.43131.54 1223.6738.2431.5650.9842.0867.9839.4563.7352.6084.9763.12101.9784.17135.9694.69152.95118.36191.19142.03229.43 1437.6760.8650.2381.1466.98108.1962.79101.4383.72135.24100.46162.29133.95216.38150.70243.43188.37304.29226.04365.15 1658.7894.9578.37126.60104.50168.8197.97158.26130.62211.01156.75253.21209.00337.61235.12379.81293.90474.77352.68569.72 1880.87130.64107.83174.18143.77232.24134.78217.73179.71290.30215.65348.36287.54464.49323.48522.55404.35653.18485.22783.82 20114.66185.22152.88246.96203.84329.28191.10308.70254.80411.60305.76493.92407.68658.56458.64740.88573.30926.10687.961111.32 22155.98251.97207.98335.97277.31447.96259.97419.96346.63559.94415.96671.93554.61895.91623.941007.90779.921259.87935.911511.85 24198.24320.24264.33426.99352.44569.32330.41533.74440.54711.65528.65853.98704.871138.64792.981280.97991.221601.211189.471921.45 27290.00468.46386.66624.61515.55832.81483.33780.76644.441041.01773.321249.211031.101665.621159.981873.821449.982342.281739.982810.73 30393.82636.17525.10848.23700.131130.98656.371060.29875.161413.721050.191696.461400.262261.951575.292544.701969.113180.872362.933817.04 33535.91865.70714.541154.26952.721539.01893.181442.831190.901923.771429.082308.521905.453078.032143.633462.782679.534328.483215.445194.17 36688.241111.77917.651482.361223.541976.491147.071852.961529.422470.611835.312964.732447.083952.972752.964447.093441.205558.874129.446670.64精加工表面（无润滑）的螺纹联接的拧紧力矩值（单位：N.m）性能等级 3.6 4.6 4.8 5.6 5.8 6.88.89.810.912.9螺纹直径d/mm min max min max min max min max min max min max min max min max min max min max 30.160.230.220.300.290.410.270.380.360.510.430.610.580.810.650.910.81 1.140.98 1.37 3.50.260.360.340.480.460.640.430.600.570.800.680.960.91 1.28 1.03 1.44 1.28 1.79 1.54 2.15 40.380.530.510.710.670.940.630.890.84 1.18 1.01 1.42 1.35 1.89 1.52 2.12 1.90 2.66 2.28 3.19 50.77 1.07 1.02 1.43 1.36 1.91 1.28 1.79 1.70 2.39 2.04 2.86 2.73 3.82 3.07 4.29 3.83 5.37 4.60 6.446 1.30 1.82 1.74 2.43 2.32 3.24 2.17 3.04 2.89 4.05 3.47 4.86 4.63 6.48 5.217.29 6.519.127.8110.947 2.18 3.06 2.91 4.08 3.88 5.44 3.64 5.10 4.86 6.80 5.838.167.7710.888.7412.2410.9215.2913.1118.358 3.16 4.43 4.22 5.90 5.627.87 5.277.387.039.848.4311.8111.2415.7412.6517.7115.8122.1418.9726.56 10 6.268.778.3511.6911.1415.5910.4414.6213.9219.4916.7023.3922.2731.1825.0635.0831.3243.8537.5852.62 1210.9315.3014.5720.3919.4227.1918.2125.4924.2833.9929.1340.7938.8554.3843.7061.1854.6376.4865.5591.77 1417.3924.3423.1832.4630.9143.2828.9840.5738.6454.1046.3764.9261.8286.5569.5597.3786.94121.72104.33146.06 1627.1337.9836.1750.6448.2367.5245.2263.3060.2984.4072.35101.2896.46135.05108.52151.93135.65189.91162.78227.89 1837.3252.2549.7769.6766.3692.9062.2187.0982.94116.1299.53139.35132.71185.79149.30209.02186.62261.27223.95313.53 2052.9274.0970.5698.7894.08131.7188.20123.48117.60164.64141.12197.57188.16263.42211.68296.35264.60370.44317.52444.53 2271.99100.7995.99134.39127.99179.18119.99167.98159.98223.98191.98268.77255.97358.36287.97403.16359.96503.95431.96604.74 2491.50128.10122.00170.80162.66227.73152.50213.49203.33284.66243.99341.59325.32455.45365.99512.39457.49640.48548.99768.58 27133.84187.38178.46249.84237.95333.12223.07312.30297.43416.40356.92499.69475.89666.25535.38749.53669.22936.91803.071124.29 30181.76254.47242.35339.29323.14452.39302.94424.12403.92565.49484.70678.59646.27904.78727.061017.88908.821272.351090.581526.82 33247.34346.28329.79461.70439.72615.61412.24577.13549.65769.51659.58923.41879.441231.21989.371385.111236.711731.391484.052077.67 36317.65444.71423.53592.95564.71790.59529.42741.18705.89988.24847.071185.891129.421581.191270.601778.841588.252223.551905.902668.26精加工表面（有润滑）的螺纹联接的拧紧力矩值（单位：N.m）性能等级 3.6 4.6 4.8 5.6 5.8 6.88.89.810.912.9螺纹直径d/mm min max min max min max min max min max min max min max min max min max min max 30.140.190.180.250.240.340.230.320.300.420.360.510.480.680.540.760.680.950.81 1.14 3.50.210.300.280.400.380.530.360.500.470.660.570.800.76 1.060.85 1.20 1.07 1.49 1.28 1.79 40.320.440.420.590.560.790.530.740.700.980.84 1.18 1.12 1.57 1.26 1.77 1.58 2.21 1.90 2.66 50.640.890.85 1.19 1.14 1.59 1.07 1.49 1.42 1.99 1.70 2.39 2.27 3.18 2.56 3.58 3.20 4.47 3.83 5.376 1.09 1.52 1.45 2.03 1.93 2.70 1.81 2.53 2.41 3.38 2.89 4.05 3.86 5.40 4.34 6.08 5.437.60 6.519.127 1.82 2.55 2.43 3.40 3.24 4.53 3.03 4.25 4.05 5.66 4.86 6.80 6.479.067.2810.209.1012.7410.9215.298 2.64 3.69 3.51 4.92 4.68 6.56 4.39 6.15 5.868.207.039.849.3713.1210.5414.7613.1818.4515.8122.14 10 5.227.31 6.969.749.2812.998.7012.1811.6016.2413.9219.4918.5625.9820.8829.2326.1036.5431.3243.85 129.1012.7512.1416.9916.1922.6615.1721.2420.2328.3224.2833.9932.3745.3236.4250.9845.5263.7354.6376.48 1414.4920.2919.3227.0525.7636.0624.1533.8132.2045.0838.6454.1051.5272.1357.9681.1472.45101.4386.94121.72 1622.6131.6530.1442.2040.1956.2737.6852.7550.2470.3460.2984.4080.38112.5490.43126.60113.04158.26135.65189.91 1831.1043.5541.4758.0655.3077.4151.8472.5869.1296.7782.94116.12110.59154.83124.42174.18155.52217.73186.62261.27 2044.1061.7458.8082.3278.40109.7673.50102.9098.00137.20117.60164.64156.80219.52176.40246.96220.50308.70264.60370.44 2259.9983.9979.99111.99106.66149.3299.99139.99133.32186.65159.98223.98213.31298.64239.98335.97299.97419.96359.96503.95 2476.25106.75101.66142.33135.55189.77127.08177.91169.44237.22203.33284.66271.10379.55304.99426.99381.24533.74457.49640.48 27111.54156.15148.72208.20198.29277.60185.90260.25247.86347.00297.43416.40396.58555.21446.15624.61557.69780.76669.22936.91 30151.47212.06201.96282.74269.28376.99252.45353.43336.60471.24403.92565.49538.56753.98605.88848.23757.351060.29908.821272.35 33206.12288.57274.82384.75366.43513.00343.53480.94458.04641.26549.65769.51732.861026.01824.471154.261030.591442.831236.711731.39 36264.71370.59352.94494.12470.59658.83441.18617.65588.24823.54705.89988.24941.181317.661058.831482.361323.541852.961588.252223.55一般表面（无润滑）的螺纹联接的拧紧力矩值（单位：N.m）性能等级 3.6 4.6 4.8 5.6 5.8 6.88.89.810.912.9螺纹直径d/mm min max min max min max min max min max min max min max min max min max min max 30.240.400.330.530.430.710.410.670.540.890.65 1.060.87 1.420.98 1.60 1.22 2.00 1.47 2.40 3.50.380.630.510.840.68 1.120.64 1.050.85 1.40 1.03 1.67 1.37 2.23 1.54 2.51 1.92 3.14 2.31 3.77 40.570.930.76 1.24 1.01 1.650.95 1.55 1.26 2.07 1.52 2.48 2.02 3.30 2.28 3.72 2.84 4.65 3.41 5.585 1.15 1.88 1.53 2.50 2.04 3.34 1.92 3.13 2.56 4.17 3.07 5.01 4.09 6.68 4.607.51 5.759.39 6.9011.276 1.95 3.19 2.60 4.25 3.47 5.67 3.26 5.32 4.347.09 5.218.51 6.9511.357.8112.769.7715.9611.7219.157 3.28 5.35 4.377.14 5.839.52 5.468.927.2811.908.7414.2711.6519.0313.1121.4116.3926.7619.6632.128 4.747.75 6.3210.338.4313.777.9112.9110.5417.2212.6520.6616.8727.5518.9730.9923.7238.7428.4646.48 109.4015.3512.5320.4616.7027.2815.6625.5820.8834.1025.0640.9233.4154.5737.5861.3946.9876.7356.3892.08 1216.3926.7721.8535.6929.1347.5927.3144.6136.4259.4843.7071.3858.2795.1765.55107.0781.94133.8398.33160.60 1426.0842.6034.7856.8046.3775.7343.4771.0057.9694.6769.55113.6092.74151.47104.33170.40130.41213.00156.49255.60 1640.6966.4754.2688.6272.35118.1667.82110.7890.43147.71108.52177.25144.69236.33162.78265.87203.47332.34244.17398.81 1855.9991.4574.65121.9399.53162.5793.31152.41124.42203.21149.30243.86199.07325.14223.95365.78279.94457.23335.92548.67 2079.38129.65105.84172.87141.12230.50132.30216.09176.40288.12211.68345.74282.24460.99317.52518.62396.90648.27476.28777.92 22107.99176.38143.99235.18191.98313.57179.98293.97239.98391.96287.97470.35383.96627.14431.96705.53539.95881.91647.941058.29 24137.25224.17183.00298.89243.99398.52228.74373.62304.99498.15365.99597.78487.99797.05548.99896.68686.231120.85823.481345.01 27200.77327.92267.69437.23356.92582.97334.61546.53446.15728.71535.38874.45713.841165.93803.071311.681003.831639.591204.601967.51 30272.65445.32363.53593.76484.70791.68454.41742.20605.88989.60727.061187.52969.411583.371090.581781.291363.232226.611635.882671.93 33371.01605.99494.68807.98659.581077.31618.351009.98824.471346.64989.371615.971319.162154.621484.052423.951855.063029.932226.073635.92 36476.47778.24635.301037.66847.071383.54794.121297.071058.831729.431270.602075.311694.132767.081905.903112.972382.373891.212858.854669.45一般表面(有润滑) 的螺纹联接的拧紧力矩值（单位：N.m）性能等级 3.6 4.6 4.8 5.6 5.8 6.88.89.810.912.9螺纹直径d/mm min max min max min max min max min max min max min max min max min max min max30.180.290.240.380.310.510.290.480.390.630.470.760.63 1.010.71 1.140.88 1.43 1.06 1.71 3.50.280.450.370.600.490.800.460.750.62 1.000.74 1.200.99 1.59 1.11 1.79 1.39 2.24 1.67 2.6940.410.660.550.890.73 1.180.68 1.110.91 1.48 1.10 1.77 1.46 2.36 1.64 2.66 2.05 3.32 2.47 3.9850.83 1.34 1.11 1.79 1.48 2.39 1.38 2.24 1.85 2.98 2.22 3.58 2.95 4.77 3.32 5.37 4.15 6.71 4.988.056 1.41 2.28 1.88 3.04 2.51 4.05 2.35 3.80 3.14 5.07 3.76 6.08 5.028.10 5.649.127.0611.408.4713.687 2.37 3.82 3.16 5.10 4.21 6.80 3.94 6.37 5.268.50 6.3110.208.4213.599.4715.2911.8319.1214.2022.948 3.43 5.53 4.577.38 6.099.84 5.719.227.6112.309.1414.7612.1819.6813.7022.1417.1327.6720.5533.20 10 6.7910.969.0514.6212.0619.4911.3118.2715.0824.3618.1029.2324.1338.9827.1443.8533.9354.8140.7265.77 1211.8419.1215.7825.4921.0433.9919.7331.8726.3042.4931.5650.9842.0867.9847.3476.4859.1895.6071.01114.72 1418.8430.4325.1240.5733.4954.1031.4050.7241.8667.6250.2381.1466.98108.1975.35121.7294.19152.15113.02182.57 1629.3947.4839.1963.3052.2584.4048.9879.1365.31105.5078.37126.60104.50168.81117.56189.91146.95237.38176.34284.86 1840.4465.3253.9187.0971.88116.1267.39108.8689.86145.15107.83174.18143.77232.24161.74261.27202.18326.59242.61391.91 2057.3392.6176.44123.48101.92164.6495.55154.35127.40205.80152.88246.96203.84329.28229.32370.44286.65463.05343.98555.66 2277.99125.99103.99167.98138.65223.98129.99209.98173.32279.97207.98335.97277.31447.96311.97503.95389.96629.94467.95755.92 2499.12160.12132.16213.49176.22284.66165.20266.87220.27355.82264.33426.99352.44569.32396.49640.48495.61800.60594.73960.72 27145.00234.23193.33312.30257.77416.40241.66390.38322.22520.51386.66624.61515.55832.81579.99936.91724.991171.14869.991405.37 30196.91318.09262.55424.12350.06565.49328.19530.15437.58706.86525.10848.23700.131130.98787.641272.35984.561590.441181.471908.52 33267.95432.85357.27577.13476.36769.51446.59721.41595.45961.88714.541154.26952.721539.011071.811731.391339.772164.241607.722597.09 36344.12555.89458.83741.18611.77988.24573.53926.48764.711235.30917.651482.361223.541976.491376.482223.551720.602779.432064.723335.32。
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10
←参 考表3
800
表3
被削材
被削材系数
铝 铝铸件
黄铜 钢
2 3～4
6～8 10
T:塑性 变形扭 矩(ห้องสมุดไป่ตู้・ m） kc:被削 材系数 K:螺纹 形状和 切削方 式的补 偿系数 D2:螺 纹基准 有效直 径 （mm P:螺距 （mm ） Pc:动力 （k ｎ:转速 （min1)
系数
黄铜 普通 细牙
30
扭矩(N
・m） kc:被切
800
削抵抗 (N/m
m2) K:螺纹
形状和
切削方
式的补
偿系数 D:攻丝
外径
（mm
）
Tｃ=tan Θ／ 24000・ Kc・K（D ーDo)2・ （D＋ 2Do)
Pc=0.00 0104・ｎ ・Tｃ
被削材
SK85
SS400
S15C S35C
S45C S55C SCM440 〃 〃 SUS304 C2801 AC4B FC250
表２ 螺纹形 状补正系数
螺纹种类
直槽丝锥 螺旋丝锥 手动丝锥 手动丝锥 手动丝锥
钢 普通 细牙
0.95 1.00 1.15 1.25 0.95 1.20 1.35 1.15 1.43 1.50
系数 铸铁，铝合金 普通 细牙
0.80 1.00 1.05 1.10
1.25 1.08 1.30 1.25
挤压丝 锥（M, U螺
需要输入
输入数据 攻丝外径 螺纹基准有效直径
螺距
扭矩(N・m)＝
5.25
6
←自 5.350 动计
算
1
所需动力(kW)
0.437
＝
※实际
加工中
由于各
种损耗
会导致
扭矩增
加 考虑4
倍于计
算值的
动力要
求是很
有必要
的
T=9.80 6・kc ・D2・ P2 Pｃ =0.000 104・n ・T
被削材系数 回转速度（min-1)
切削螺 纹 （M， U螺
输入数据 攻丝外径
底孔直径
比切削抵抗
螺距 螺纹半角 转速
表１ 被削材 别比切 削抵抗
需要输入
2.088
扭矩(N・m)＝
6
所需动力(kW)
0.174
＝
※实际
加工中
由于各
5.1
种损耗
会导致
扭矩增
加 考虑4
倍于计
4900
←参 考表1
算值的 动力要 求是很
有必要
1.35
←参 考表2
的 Tc:切削
硬度
175HB
133HB
141HB 162HB
188HB 188HB 193HB 30HRC 40HRC 209HB
193HB
比切削抵抗
5300
3700
3600 3700
3900 4000 3600 4900 5500 4200 2300 1300 2900
Do:底 孔直径 （mm ） Θ:螺纹 半角 （°） Pc:动力 （k ｎ:转速 （min1)
0.75 1.00 0.85 1.20 1.60 1.10 1.68 1.12