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Click Specification

Unit:mm

GB 3289.1 - 1982

Display drawing:

国标GB 3289.1 - 1982 GB3289.1 3289.1GB
Inside Nominal Diameter
6 8 10 15 20 25 32 40 50 65 80 90 100 125 150
Inside Nominal Diameter (inch)
d
a
Threads per inch
D Nominal Size
max
min
L2
D1 Nominal Size
max
min
L1
t Nominal Size
max
min
D2
b
D3
b1
h
B
1/8 1/4 3/8 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 3-1/2 4 5 6
9.728 13.157 16.662 20.955 26.441 33.249 41.91 47.803 59.614 75.184 87.884 10.33 113.03 138.43 163.83
4 6 6.4 8.2 9.5 10.4 12.7 12.7 15.9 17.5 20.6 22.2 25.4 28.6 28.6
28 19 19 14 14 11 11 11 11 11 11 11 11 11 11
15 20 23 28 34 41 51 57 70 85 99 112 126 151 178
15.9 21.05 24.05 29.05 35.25 42.25 52.25 58.5 71.5 86.75 100.75 113.75 128 153 180
14.1 18.95 21.95 26.95 32.75 39.75 49.75 55.5 68.5 83.25 97.25 110.25 124 149 176
6 8 9 11 13 15 17 18 20 23 25 26 28 30 33
8 11 14 18 24 29 38 44 56 71 84 96 108 134 159
8.75 11.9 14.9 18.9 25.05 30.05 39.25 45.25 57.5 72.5 85.75 97.75 109.75 136 161
7.25 10.1 13.1 17.1 22.95 27.95 36.75 42.75 54.5 69.5 82.25 94.25 106.25 132 157
9 11 12 15 17 19 22 23 26 30 32 35 38 41 45
2 2.5 2.5 2.5 3 3 3.5 3.5 4 4 4.5 4.5 5 5 6
2.5 3 3 3 3.5 3.5 4.1 4.1 4.6 4.6 5.1 5.1 5.6 5.6 6.6
1.5 2 2 2 2.5 2.5 2.9 2.9 3.4 3.4 3.9 3.9 4.4 4.4 5.4
16.5 22 25 29.5 36.5 44 53 60 73 89 105 117.5 132 158 186
2.5 3 3 3.5 3.5 4 4 5 5 6 7 7.5 8 9 10
16 21 24 29 36 43 52 59 72 88 103 116 130 156 183
4 4 4 5 5 6 7 8 9 10 11 12 14 16 18
1 1 1 1.5 1.5 1.5 1.5 2 2 2.5 2.5 3 3 3.5 3.5
3 3 3 3 3 4 4 4 4 5 5 5 7 7 7
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