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Taper Pins With Internal Thread - Type A and B

GB 118 - 1986

Display drawing:

国标GB 118 - 1986 GB118 118GB Taper Pins With Internal Thread - Type A and B

 *Models with different eras.

Nominal Diameter
d
Φ6 Φ8 Φ10 Φ12 Φ16 Φ20 Φ25 Φ30 Φ40 Φ50
d max
min
a
d1
t1
t2 min
c
6 8 10 12 16 20 25 30 40 50
5.952 7.942 9.942 11.93 15.93 19.916 24.916 29.916 39.9 49.9
0.8 1 1.2 1.6 2 2.5 3 4 5 6.3
M4 M5 M6 M8 M10 M12 M16 M20 M20 M24
6 8 10 12 16 18 24 30 30 36
10 12 16 20 25 28 35 40 40 50
0.8 1 1.2 1.6 2 2.5 3 4 5 6.3
①,Type A (ground pins) : Surface finish Ra = 0.8μm
Type B (turned pins) : Surface finish Ra = 3.2μm

Alternative history

GB 118 - 1986 GB /T 118 - 2000