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    Special Self Drilling Screws
 
 

Special Self Drilling 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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