BOLT TORQUE
Rev B 12/9/03
"DRY" BOLT TIGHTENING TORQUE
"DRY" IS LIGHT MACHINE OIL, GENERALLY AS DELIVERED IN THE BOX
USE "LUBRICATED" VALUES FOR WET LOCKTITE COVERED BOLTS
GRADE 12.9 GRADE 10.9 GRADE 8.8
N-M FT-LBS N-M FT-LBS N-M FT-LBS M4 4.6 3.358M4 2.7 1.971M4
M59.5 6.935M5 5.5 4.015M5
M61611.7M6139.5M69.5 6.9
M83928.5M83223.4M82316.8
M107756.2M106446.7M104633.6
M1213598.6M1211080.3M128058.4
M16330240.9M16275200.8M16195142.4
M20660481.8M20550401.5M20390284.7
M241130830M24900660M24715520
M3022501660M3018001330M3014151040 "LUBRICATED" BOLT TIGHTENING TORQUE
"LUBRICATED" IS ANTISIEZE OF SIMILAR
USE FOR WET LOCKTITE COVERED BOLTS
GRADE 12.9 GRADE 10.9 GRADE 8.8
N-M FT-LBS N-M FT-LBS N-M FT-LBS M4 3.68 2.6864M4 2.16 1.5768M4
M57.6 5.548M5 4.4 3.212M5
M612.89.3M610.47.6M67.6 5.5
M831.222.8M825.618.7M818.413.4
M1061.645.0M1051.237.4M1036.826.9
M1210878.8M128864.2M126446.7
M16264192.7M16220160.6M16156113.9
M20528385.4M20440321.2M20312227.8
M24904664M24720528M24572416
M3018001328M3014401064M301132832 NOTES:
METRIC SCREW CLASS IS INDICATED ON THE HEAD OF THE FASTENER OR ON THE BOX DEPENDING ON FASTENER SIZE -- 12.9, 10.9 OR 8.8
-- BLACK SOCKET HEAD CAP SCREWS ARE GENERALLY GRADE 12.9
-- BLACK BUTTON HEAD, HEX HEAD AND COUNTERSINK (FLAT HEAD) BOLTS ARE GENERALLY 10.9
-- NON-BLACK FASTENERS (ZINC, SS OR CHROMATE) ARE GENERALLY LOWER GRADE.
Printed copies of Electroimpact standards are for reference only and are not subject to revision control.
Internal Thread Minor Diameter Limits
Rev A 6/24/04
Inch Metric Class 2B Class 6H
Metric Inch Thread Min Max Thread Min Max Min Max
4-400.0940.085M 2 X .40 1.57 1.680.0620.066 4-480.0890.097M 2.5 X .45 2.01 2.140.0790.084 6-320.1040.114M 3 X .50 2.46 2.640.0970.104 8-320.1300.139M 4 X .70 3.24 3.470.1280.136 10-240.1450.156M 5 X .80 4.13 4.380.1630.173 10-320.1560.164M 6 X 1.0 4.92 5.150.1940.203 1/4-200.1960.207M 8 X 1.25 6.65 6.910.2620.272 1/4-280.2110.220M 10 X 1.58.388.680.3300.342 5/16-180.2520.265M 12 X 1.7510.1110.440.3980.411 5/16-240.2670.277M 14 X 2.0 11.8412.210.4660.481 3/8-160.3070.321M 16 X 2.013.8414.210.5450.559 3/8-240.3300.340M 20 X 2.517.2917.740.6810.699 7/16-140.3600.376M 24 X 3.020.7521.250.8170.837 7/16-200.3830.395M 30 X 3.526.2126.77 1.032 1.054 1/2-130.4170.434
1/2-200.4460.457
5/8-110.5270.546Other metric threads start
5/8-180.5650.578on page 1645 in Machinery's Handbook
3/4-100.6420.663
3/4-160.6820.696
1-80.8650.890
1-120.9100.928
Other unified threads start
on page 1544 in Machinery's Handbook
Copied from Machinery's Handbook and is for reference only
For metric threads where the pitch is not called out on the drawing,
see the countersink/counterbore standards
螺丝及沉头孔尺寸表 规格 螺丝头直径 螺丝头厚度 螺丝杆直径 沉头孔直径 沉头孔深度 通过孔直径 M2 3.8 4.5 3.0 2.5 M3 5.5 6.0 3.5 3.5 M4 7.0 7.5 4.5 4.5 M5 8.5 9.0 5.5 5.5 M6 10.0 6 5.8 11 6.5 6.5 M8 12.0 8 7.8 13 8.5 8.5 M10 15.0 10 9.8 16 10.5 10.5 M12 17.8 12.5 11.8 19 12.5 12.5 M14 M16 24 16 15.9 26 16.5 17 M18 M20 M22 M24 六角承孔头螺丝[JIS B1176(1988) *JIS B1176(1976)拔粹 参考:对六角承孔头螺丝的沉头及螺丝孔的尺寸 螺丝称号(d) M3 M4 M5 M6 M8 M10 M12 (M14) M16 M20 M24 M30 螺牙节距(p) 0.5 0.7 0.8 1 1.25 1.5 1.75 2 2 2.5 3 3.5 b 参 考 18 20 22 24 28 32 36 40 44 52 60 72 dk 最大(基准尺寸) 5.5 7 8.5 10 13 16 18 21 24 30 36 45 最大 5.68 7.22 8.72 10.22 13.27 16.27 18.27 21.33 24.33 30.33 36.39 45.39 最小 5.32 6.78 8.28 9.78 12.73 15.73 17.73 20.67 23.67 29.67 35.61 44.61 da 最大 3.6 4.7 5.7 6.8 9.2 11.2 13.7 15.7 1 7.7 22.4 26..4 33.4 ds 最大(基准尺寸) 3 4 5 6 8 10 12 14 16 20 24 30 最小 2.86 3.82 4.82 5.82 7.78 9.78 11.73 13.73 15.73 19.67 23.67 29.67 k 最大(基准尺寸) 3 4 5 6 8 10 12 14 16 20 24 30 最小 2.86 3.82 4.82 5.70 7.64 9.64 11.57 13.57 15.57 19.48 23.48 29.48 r 最小 0.1 0.2 0.2 0.25 0.4 0.4 0.6 0.6 0.6 0.8 0.8 1 s 基准尺寸 2.5 3 4 5 6 8 10 12 14 17 19 22 螺丝称号(d) M3 M4 M5 M6 M8 M10 M12 M14 M16 M20 M24 M30 ds 3.3 4 5 6 8 10 12 14 16 20 24 30 ds’ 3.4 4.5 5.5 6.6 9 11 14 16 18 22 26 33 dk 5.5 7 8.5 10 13 16 18 21 24 30 36 45 dk′ 6.5 8 9.5 11 14 17.5 20 23 26 32 39 48 k 3 4 5 6 8 10 12 14 16 20 24 30 k′ 2.7 3.6 4.6 5.5 7.4 9.2 11 12.8 14.5 18.5 22.5 28 k′′ 3.3 4.4 5.4 6.5 8.6 10.8 13 15.2 17.5 21.5 25.5 32
3-06常用螺丝及螺丝孔规格表 1.螺纹联接的用途及特征 a.普通螺纹主要用于紧固联接, 其牙型角为60度, 螺距分为粗牙和细牙. 粗牙螺纹的直径和螺距 的比例适中,强度好; 细牙螺纹用于薄壁零件和轴向尺寸受限制的场合或用于微调机构. b.关于螺栓和螺钉力学性能和材料 性能 等级 抗拉强度 Mpa 洛氏硬度 保证应力 Mpa 刚的类别和热处理粗牙直径范围 3.6 330 HRB52 180 低碳钢<或=16mm 4.6 400 HRB67 230 低碳钢或中碳钢 <或=16mm 4.8 420 HRB70 310 5.6 500 HRB80 280 所有直径 5.8 520 HRB83 380 6.8 600 HRB89 440 8.8 800 HRC25 600 中碳钢,回火温度450 低碳合金刚, 回火温度425 所有直径 回火温度425直径>20mm 9.8 900 HRC28 660 中碳钢, 回火温度410 低碳合金刚, 回火温度410 <或=16mm 10.9 1040 HRC34 830 中碳钢,回火温度425 低/中碳合金刚, 回火温度340/410 所有直径 12.9 1220 HRC39 930 低碳合金刚, 回火温度380 <或=39mm c.自攻螺钉—多用于联接较薄的钢板和有色金属板. 螺钉较硬, 一般热处理硬度为HRC50~58, 在被联接件上可不预先制出螺纹, 在联结时利用螺钉直接攻出螺纹. 1. 十字槽盘头自攻螺钉 2. 十字槽沉头自攻螺钉 3. 十字槽半沉头自攻螺钉 4. 开槽盘头自攻螺钉 5. 开槽沉头自攻螺钉 6. 开槽半沉头自攻螺钉
常用螺丝和螺丝孔规格
3-06常用螺丝及螺丝孔规格表 1.螺纹联接的用途及特征 a. 普通螺纹主要用于紧固联接, 其牙型角为60度, 螺距分为粗牙和细牙. 粗牙螺纹的直径和螺 距的比例适中,强度好; 细牙螺纹用于薄壁零件和轴向尺寸受限制的场合或用于微调机构. b. 关于螺栓和螺钉力学性能和材料 性能 等级 抗拉强度 Mpa 洛氏硬度 保证应力 Mpa 刚的类别和热处理粗牙直径范围 3.6 330 HRB52 180 低碳钢<或 =16mm 4.6 400 HRB67 230 低碳钢或中碳钢 < 或=16mm 4.8 420 HRB70 310 5.6 500 HRB80 280 所有直径 5.8 520 HRB83 380 6.8 600 HRB89 440 8.8 800 HRC25 600 中碳钢,回火温度450 低碳合金刚, 回火温度425 所有直径 回火温度425直径>20mm 9.8 900 HRC28 660 中碳钢, 回火温度410 低碳合金刚, 回火温度410 <或=16mm 10.9 1040 HRC34 830 中碳钢,回火温度425 低/中碳合金刚, 回火温度340/410 所有直径 12.9 1220 HRC39 930 低碳合金刚, 回火温度380 <或=39mm c. 自攻螺钉—多用于联接较薄的钢板和有色金属板. 螺钉较硬, 一般热处理硬度为HRC50~58, 在被联接件上可不预先制出螺纹, 在联结时利用螺钉直接攻出螺纹. 1. 十字槽盘头自攻螺钉 2. 十字槽沉头自攻螺钉 3. 十字槽半沉头自攻螺钉 4. 开槽盘头自攻螺钉 5. 开槽沉头自攻螺钉 6. 开槽半沉头自攻螺钉
螺丝及沉头孔尺寸表 规格 螺丝头直径 螺丝头厚度 螺丝杆直径 沉头孔直径 沉头孔深度 通过孔直径 普通平垫圈外径 普通平垫圈厚度 M2 M3 7 M4 9 M5 5 10 1 M6 6 11 12 M8 8 13 16 M10 10 16 20 2 M12 19 24 M14 M16 24 16 26 17 M18 M20 M22 M24 ds'φ φ ds dk dk'φφφ ds ds'φφφdk'dk k " k d d k ' k
六角承孔头螺丝[JIS B1176(1988) *JIS B1176(1976)拔粹 TEL FAX E-mail ccsmould@https://www.doczj.com/doc/1515483016.html, （0512）65015828（0512）65012333 参考:对六角承孔头螺丝的沉头及螺丝孔的呎吋 螺丝称号(d) M3 M4 M5 M6 M8 M10 M12 (M14) M16 M20 M24 M30 螺牙节距(p) 1 2 2 3 b 参 考 18 20 22 24 28 32 36 40 44 52 60 72 dk 最大(基准呎吋) 7 10 13 16 18 21 24 30 36 45 最大 最小 da 最大 26..4 螺丝称号(d) M3 M4 M5 M6 M8 M10 M12 M14 M16 M20 M24 M30 ds 4 5 6 8 10 12 14 16 20 24 30 ds’ 9 11 14 16 18 22 26 33 dk 7 10 13 16 18 21 24 30 36 45 dk′ 8 11 14 20 23 26 32 39 48 k 3 4 5 6 8 10 12 14 16 20 24 30 k′ 11 28 k′′ 13 32 k d k l b s d k d a d s φφφr