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Hex Big Washer Heavy Duty Self-drilling Screws

Hex washer head self-drilling screws for steel, mainly used for steel structure fixing, fine thread could provide faster drilling speed and stronger fastening ability, #5 point could easily drill through max 12mm steel plate.
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Product Description
Material Application
Carbon Steel 1022A For fixing steel plate to thick steel structure
Stainless Steel 410
Bi-metal A2/A4+SCM435
Surface Treatment
AS3566 Class 3/Class 4 Drilling Capacity
Zinc Plated #12   Max Thinckness 12.5mm
Advantage
Faster drilling speed #14   Max Thinckness 12.5mm
No iron filings get stuck on the thread

Diameter Effective Fixing Thickness Screw Size
5.5mm/#12 gauge ＜16mm 12-24x38mm
＜28mm 12-24x50mm
＜46mm 12-24x68mm
6.3mm/#14 gauge ＜28mm 14-24x50mm
＜46mm 14-24x68mm
＜58mm 14-24x80mm
＜73mm 14-24x95mm

*For sizes or specifications not listed, please contact us for further information


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