双头螺柱

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中国第一重型机械集团公司标准

双头螺柱b m =1.25d

GB 898-88代替GB 898-76

机械性能等级:8.8

标记示例:

两端均为粗牙普通螺纹,d=10mm ,l=50mm 的双头螺柱的标记为:

螺柱M10×50GB 898-88

末端按GB 2的规定;ds ≈

螺纹中径

1

返回总目录

返回分目录后退

注:①全部◣。

注:②P —粗牙螺距。

注:③折线之间为通用规格范围。

注:④当b-b m ≤5mm 时,旋螺母一端应制成倒圆端。注:⑤无螺纹部分直径d s 允许制成与螺纹外径尺寸相等的型式。

注:⑥螺纹公差按GB 197-81规定的6g 级。注:⑦表面氧化(或磷化)处理。

注:⑧可以选择表中没有的长度,但个位数应尽量为0或5,如果选择的长度超过表中长度尺寸时,则其螺纹长度

按表中相应直径的最大螺纹长度制造。

螺纹规格d

M24M30M36M42M48b m

30

38

45

52

60min

28.9536.7543.7550.5058.50

max 31.0539.2546.2553.5061.50d s

min 23.4829.4835.3841.3847.38max 24.0030.00

36.0042.00

48.00

x

max 1.5P

l

b 公称min

max

40

38.7541.254543.7546.25305048.7551.256058.5061.5045

407068.5071.5050

45508078.5081.5054

60609088.2591.757010098.25101.7566

80110108.25111.75120

118.25

121.7578

90

102

130128.00132.0060728496108

140138.00142.00150148.00152.00160158.00162.00170168.00172.00180178.00182.00190187.70192.30200197.70202.30210207.70212.3085

109

121

220217.70222.30230227.70232.30240237.70242.30250247.70252.30260257.40262.60280277.40282.60300297.40302.6097

续表员

mm

表圆

l mm

d(mm)

M6

M8

M10M12M16M20M24M30M36M42M48

每1000个钢螺柱的重量kg≈

204.9419.556

255.82411.1518.5728.96

306.70612.7421.1032.5866.60

357.58914.3323.6036.2073.26125.0

408.47115.9326.1039.8279.92135.3

459.38117.5228.6143.4486.58145.7224.7

5010.2719.1131.1247.0293.24156.2239.8

6012.0422.3036.1454.29106.6177.0269.7464.4

7013.8125.4841.1661.53119.9197.8299.7511.8791.01130 8028.6746.1868.77133.2218.6329.7559.2859.812241729 9031.8551.2076.01146.6239.4359.7606.6928.513181853 10056.2283.25159.9260.3389.7654.0997.314121976 11061.2490.50173.2281.1419.6701.4106615062100 12066.2697.74186.5301.9449.6748.8113516002223 13071.28105.0199.9322.7479.6796.5120416942347 140112.2213.2343.5509.6844.2127217882470 150119.5226.5364.3539.5892.0134118822594 160126.7239.8385.1569.5939.7141019762717 170134.0253.2406.0599.5987.5147920712841 180141.2266.5425.8629.51035154821652964 190279.8446.6659.51083161622593088 200293.1467.4689.41131168523533211 2101179175424473335 2201227182325413458 2301275189126353582 2401323196027303705 2501371202928243829 260209829183952 280223631064199 300237432954446

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