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(Non-preferred) dimensions in parentheses.

Raised Countersunk Head Screws With Cross Recess

GB /T 820 - 2015

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国标GB /T820 - 2015 GB820 820GB Raised Countersunk Head Screws With Cross Recess
国标GB /T820 - 2015 GB820 820GB Raised Countersunk Head Screws With Cross Recess
Calculate weight and price. Weight 1000 pcs : kg x $ per kg = $ 1000 pcs
Default density g/cm3
Nominal Length L Tips:seclect Nominal Length L and get Weight Thread length.
Screw Thread
d
M1.6 M2 M2.5 M3 (M3.5) M4 M5 M6 M8 M10
P Pitch
a max
dk theor. max
Actual max=nominal size
min
f
k max=nominal size
r max
R
x max
Socket No.
M1 Ref.
M2 Ref.
Penetration depth type H max
min
type Z max
min
0.35 0.4 0.45 0.5 0.6 0.7 0.8 1 1.25 1.5
0.7 0.8 0.9 1 1.2 1.4 1.6 2 2.5 3
3.6 4.4 5.5 6.3 8.2 9.4 10.4 12.6 17.3 20
3 3.8 4.7 5.5 7.3 8.4 9.3 11.3 15.8 18.3
2.7 3.5 4.4 5.2 6.94 8.04 8.94 10.87 15.37 17.78
0.4 0.5 0.6 0.7 0.8 1 1.2 1.4 2 2.3
1 1.2 1.5 1.65 2.35 2.7 2.7 3.3 4.65 5
0.4 0.5 0.6 0.8 0.9 1 1.3 1.5 2 2.5
3 4 5 6 8.5 9.5 9.5 12 16.5 19.5
0.9 1 1.1 1.25 1.5 1.75 2 2.5 3.2 3.8
0 0 1 1 2 2 2 3 4 4
1.9 2 3 3.4 4.8 5.2 5.4 7.3 9.6 10.4
1.9 2.2 2.8 3.1 4.6 5 5.3 7.1 9.5 10.3
1.2 1.5 1.85 2.2 2.75 3.2 3.4 4 5.25 6
0.9 1.2 1.5 1.8 2.25 2.7 2.9 3.5 4.75 5.5
1.2 1.4 1.75 2.08 2.7 3.1 3.35 3.85 5.2 6.05
0.95 1.15 1.5 1.83 2.25 2.65 2.9 3.4 4.75 5.6
Weight of per 1000 steel products(≈kg)
- - - - - - - - - -
Length of Thread b min
- - - - - - - - - -
①,The thread diameter of the unthreaded portion is approximately equal to the pitch diameter or allowed to equal the major thread diameter

Alternative history

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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