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Click Specification

(Non-preferred) dimensions in parentheses.

Unit:mm

Hexalobular Socket Countersunk Flat Head Screws

GB /T 2673.1 - 2018

Display drawing:

国标GB /T2673.1 - 2018 GB2673.1 2673.1GB Hexalobular Socket Countersunk Flat Head Screws
Download CAD Model
Nominal Length L Tips:seclect Nominal Length L and get Thread length.
Thread Size
d
M2 M2.5 M3 (M3.5) M4 M5 M6 M8 M10
-
P Pitch
b min
dk Theoretical max
Actual max=nominal size
min
k max=nominal size
x max
Socket No.
A Ref.
t max
min
Tensile load(N) min Property class-4.8
Property class-8.8
Property class-50
Property class-70
不带轴肩 不带轴肩 不带轴肩 不带轴肩 不带轴肩 带轴肩 带轴肩 带轴肩 带轴肩
0.4 0.45 0.5 0.6 0.7 0.8 1 1.25 1.5
25 25 25 38 38 38 38 38 38
4.4 5.5 6.3 8.2 9.4 10.4 12.6 17.3 20
3.8 4.7 5.5 7.3 8.4 9.3 11.3 15.8 18.3
3.5 4.4 5.2 6.94 8.04 8.94 10.87 15.37 17.78
1.2 1.5 1.65 2.35 2.7 2.7 3.3 4.65 5
1 1.1 1.25 1.5 1.75 2 2.5 3.2 3.8
6 8 10 15 20 25 30 45 50
1.75 2.4 2.8 3.35 3.95 4.5 5.6 7.93 8.95
0.64 0.79 0.83 1.32 1.53 1.51 1.78 2.54 2.8
0.51 0.66 0.7 1.16 1.14 1.12 1.39 2.15 2.41
- - 1690 2280 2950 4770 6750 12300 19500
- - 3220 4340 5620 9080 12900 23400 37100
830 1350 2010 2710 3510 5680 8000 14600 23200
1160 1900 2810 3790 4910 7950 11200 20500 32400
Length of Thread b
- - - - - - - - -
②,ds≈thread diameter

Alternative history

GB 2673 - 1986 GB /T 2673 - 2007 GB /T 2673.1 - 2018

Suppliers

Best price if from GlobalFastener.com.
Jiangsu BofanKe Precision Metal Technology Co., Ltd.

  • Director Tang

  • +86-15298892886/15262400870

  • +86-516-86839568

  • Material: stainless steel, carbon steel; Nominal diameter: M1-M14; Nominal length: 5-400mm
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