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Threaded cylindrical pin GB878-86
d | 公 称 | 4 | 6 | 8 | 10 | 12 | 16 | 20 | |
min | 3.82 | 5.82 | 7.78 | 9.78 | 11.73 | 15.73 | 19.67 | ||
max | 4 | 6 | 8 | 10 | 12 | 16 | 20 | ||
d1 | M4 | M6 | M8 | M8 | M12 | M16 | M20 | ||
b | max | 4.4 | 6.6 | 8.8 | 11 | 13.2 | 17.6 | 22 | |
min | 3 | 4.6 | 6.3 | 8 | 9.2 | 13.6 | 17 | ||
n | 公 称 | 0.6 | 1 | 1.2 | 1.6 | 2 | 2.5 | 3 | |
min | 0.66 | 1.06 | 1.26 | 1.66 | 2.06 | 2.56 | 3.06 | ||
max | 0.8 | 1.2 | 1.51 | 1.91 | 2.31 | 2.81 | 3.31 | ||
t | max | 2.05 | 2.9 | 3.6 | 4.25 | 4.8 | 5.5 | 6.8 | |
min | 1.75 | 2.5 | 3.1 | 3.75 | 4.2 | 4.8 | 6 | ||
X max | 1.4 | 2 | 2.5 | 3 | 3.5 | 4 | 5 | ||
c ≈ | 0.6 | 1 | 1.2 | 1.5 | 2 | 2.5 | |||
l | |||||||||
公称 | min | max | |||||||
10 | 9.71 | 10.29 | |||||||
12 | 11.65 | 12.35 | |||||||
14 | 13.65 | 14.35 | 商 | ||||||
18 | 17.65 | 18.35 | |||||||
20 | 19.58 | 20.42 | 品 | ||||||
22 | 21.58 | 22.42 | |||||||
24 | 23.58 | 24.42 | 规 | ||||||
26 | 25.58 | 26.42 | |||||||
28 | 27.58 | 28.42 | 格 | ||||||
30 | 29.58 | 30.42 | |||||||
32 | 31.5 | 32.5 | 范 | ||||||
35 | 34.5 | 35.5 | |||||||
40 | 39.5 | 40.5 | 围 | ||||||
45 | 44.5 | 45.5 | |||||||
50 | 49.5 | 50.5 | |||||||
55 | 54.4 | 55.6 | |||||||
60 | 59.4 | 60.6 |
技术条件
螺纹按GB196及GB197规定的6g级制造,其余按GB121规定。
5 标记
5.1 标记方法按GB/T1237规定
5.2 标记示例
公称直径 d =10mm、长度 l=30mm、材料为35钢、热处理硬度HRC28~38、表面氧化处理的螺纹圆柱销的标记:销 GB878 10×30
Technical conditions
The threads are manufactured according to the 6g grade specified by GB196 and GB197, and the rest are specified by GB121.
5 marks
5.1 The marking method shall be specified in GB/T1237
5.2 Marking example
Nominal diameter d = 10mm, length l = 30mm, material is 35 steel, heat treatment hardness HRC28 ~ 38, surface oxidation treatment of threaded cylindrical pin marking: pin GB878 10 × 30
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