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About Company
 
 
Model / Specification
IFI, DIN7504, JIS, BS
Country of Origin
TAIWAN
Surface Treatment
Material
Carbon Steel
Alias
 
Self-drilling Screws
Patent
Head Marking
Capacity
Minimum Order Quantity
Detailed Description
*Screw Wings
It is necessary to use fasteners with wings when fastening wood, over ½” thick, to metal. The wings will ream a clearance hole and keep the threads from engaging too early. If the threads engage too early, this could cause a separation of the fastened material from the base material (jacking). Once the wings hit the metal material, they will break off allowing the threads to engage. 
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