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Click Specification

(Non-preferred) dimensions in parentheses.

Unit:mm

Cross Recessed Small Pan Head Screws

GB 823 - 1988

Display drawing:

国标GB 823 - 1988 GB823 823GB Cross Recessed Small Pan Head Screws
Download CAD Model*
国标GB 823 - 1988 GB823 823GB Cross Recessed Small Pan Head Screws
Download CAD Model*

 *Models with different eras.

Calculate weight and price. Weight 1000 pcs : kg x $ per kg = $ 1000 pcs
Default density g/cm3
×

Choose materials based on density.(g/cm3)

  • Carbon Steel 7.85
  • Stainless Steel 8.1
  • Stainless Steel 7.95
  • Stainless Steel 7.7
  • Titanium Alloy 4.5
  • Aluminum Alloy 2.8
  • Copper 8.89


Select here or enter material density on the calculation page.
Nominal Length L Tips:seclect Nominal Length L and get Weight Thread length.
Screw Thread
d
M2 M2.5 M3 (M3.5) M4 M5 M6 M8
P Pitch
a max
dk max
min
k max
min
x max
Socket No.
m Ref.
Penetration depth max
min
0.4 0.45 0.5 0.6 0.7 0.8 1 1.25
0.8 0.9 1 1.2 1.4 1.6 2 2.5
3.5 4.5 5.5 6.0 7.0 9.0 10.5 14.0
3.2 4.2 5.2 5.7 6.64 8.64 10.07 13.57
1.4 1.8 2.15 2.45 2.75 3.45 4.1 5.4
1.26 1.66 2.01 2.31 2.61 3.27 3.8 5.1
1 1.1 1.25 1.5 1.75 2 2.5 3.2
1 1 2 2 2 2 3 3
2.2 2.6 3.5 3.8 4.1 4.8 6.2 7.7
1.01 1.42 1.43 1.73 2.03 2.73 2.86 4.36
0.6 1.00 0.86 1.15 1.45 2.14 2.26 3.73
Weight of per 1000 steel products(≈kg)
- - - - - - - -
Length of Thread b min
- - - - - - - -
②,The diameter of the threadless part is approximately equal to the pitch diameter or major diameter

Alternative history

GB 823 - 1988 GB /T 823 - 2016

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