Drywall Screws, Coarse Thread CE

Material: Steel – C1022A , Hardened by heat treatment;

Surface hardness: 550-800 HV

Surface: Grey phosphateCore hardness: 240-450 HV

Dimension of Bugle Head Drywall Screws, Coarse Thread as below:
 

Size  (mm)
A  Head diameter (mm)
F  Head height (mm)
D  Outer diameter (mm)
d  Inner diameter (mm)
P  Thread distance (mm)
Q  Recess  deepness (mm)
M  Recess width      (mm)
Recess
R  Head radius (mm)
3.5
7.90-8.50
4.50-7.00
3.50-3.90
2.05-2.35
2.70-2.82
2.60-2.93
4.50-5.10
Ph2
4.50-5.00
4.2
7.90-8.50
4.50-7.00
4.20-4.60
2.55-2.85
2.90-3.18
2.60-2.93
4.50-5.10
Ph2
4.50-5.00

 

 

Bugle Head Drywall Screws, Coarse Thread

Technical information

Drywall Screws, Coarse Thread CE

 

Size A F D d P Q M Screwdriver R
3.5
7.90-8.50
4.50-7.00
3.50-3.90
2.05-2.35
2.70-2.82
2.60-2.93
4.50-5.10
Ph2
4.50-5.00
4.0
7.90-8.50
4.50-7.00
4.20-4.60
2.55-2.85
2.90-3.18
2.60-2.93
4.50-5.10
Ph2
4.50-5.00

 

Steel
C1022A
Coating
GPH
Hardness
550-800HV
L, mm 25 32 35 41 45 55 70
3.5 m m m m m    
4.2              
 

 

 

 
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