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Concrete screws
Self-drilling screws
Wooden screws
Special Self-drilling screws
Machine screws
Drywall screws
Special require screws
   
 

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    Wooden Screws
 
 

Wooden Screws gathers drilling, tapping and tightening at the same time.
The reason is self drilling screw has an extra function–drilling.
These Drill points are designed in a manner much the same as a high speed drill bit.
Self drilling screw’s case hardness and core hardness is higher than the self tapping screw. Self-drilling screws have a hardened drill point that will drill and thread in structural steel and mild steel. Self-drilling screws are available in a variety of finishes with unique product features to suit a wide range of environmental conditions.

 
Material: Carbon Steel, Stainless, Aluminum Alloy, Bi-Metal, Others
Diameter Range : M 3.5 ~ 6.3 or #6 ~ #14
Length : 9.5 ~ 160 mm
Coating: Zinc or Yellow Plated、Ruspert、Dacrotized、Machinical galvanized、Painted Head、others
Usage: Prefabricated house、building roof、floor、truck bucket、container floor、others
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