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Click Specification

(Non-preferred) dimensions in parentheses.

Unit:mm

Screws thread shanks for thread forming screw-Metric coarse thread series

GB /T 6559 - 1986

Display drawing:

国标GB /T6559 - 1986 GB6559 6559GB Screws thread shanks for thread forming screw-Metric coarse thread series
Nominal Length L Tips:seclect Nominal Length L and get Thread length.
Thread Size
M2 M2.5 M3 (M3.5) M4 M5 M6 M8 M10 M12
P pitch
a max
b min
d max
min
h max
min
y ≈
dp max
x max
0.4 0.45 0.5 0.6 0.7 0.8 1 1.25 1.5 1.75
0.8 0.9 1 1.2 1.4 1.6 2 2.5 3 3.5
10 12 16 20 25 30 35 35 35 35
2.04 2.58 3.08 3.58 4.13 5.13 6.16 8.17 10.18 12.19
1.96 2.48 2.98 3.48 3.98 4.98 5.99 7.98 9.97 11.95
1.95 2.46 2.95 3.43 3.96 4.93 5.93 7.91 9.89 11.87
1.87 2.36 2.85 3.33 3.84 4.78 5.78 7.76 9.74 11.72
1.4 1.4 1.5 1.8 2 2.5 3 3.8 4.5 5.5
1.65 2.14 2.6 3 3.45 4.35 5.19 6.96 8.72 10.49
1 1.1 1.25 1.5 1.75 2 2.5 3.2 3.8 4.4
Length of Thread b
- - - - - - - - - -
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