Premium Flange Self Drilling Screws – Corrosion Resistant Fasteners for Construction & Manufacturing
Industrial-Grade Fastening Solutions for Professional Applications
Our premium flange self drilling screws are engineered for heavy-duty construction and manufacturing applications, providing superior performance in steel framing, metal roofing, and industrial assembly. Made from high-quality carbon steel with zinc plating or phosphating surface treatments, these screws combine exceptional strength, corrosion resistance, and installation efficiency—making them the ideal choice for contractors, OEMs, and metal fabricators.
Technical Specifications & Key Features
1. High-Strength Carbon Steel Construction
-
Material: Premium carbon steel (Grade 4.8/8.8 available)
-
Tensile Strength: 420 MPa (Grade 4.8) / 830 MPa (Grade 8.8)
-
Hardness: 32-45 HRC (heat-treated for durability)
-
Thread Type: Self-drilling (Type 17 point for easy penetration)
2. Advanced Corrosion Protection
| Surface Treatment | Coating Thickness | Salt Spray Resistance | Best For |
|---|---|---|---|
| Zinc Plated (Blue/Yellow/White) | 5-15μm | 72-500 hours | Outdoor/Indoor |
| Phosphated (Black) | 8-12μm | 48-120 hours | Indoor/Short-term outdoor |
3. Flange Head Design Benefits
-
Integrated Washer: Distributes load, prevents pull-through
-
Phillips/Hex Drive Options: Compatible with power tools
-
No Separate Washer Needed: Faster installation
4. Self-Drilling Performance
-
Sharp Drill Point: Penetrates 16-22 gauge steel without pre-drilling
-
Optimized Threads: Reduced driving torque, faster installation
Industrial Applications
✔ Metal Roofing & Cladding – Weather-resistant fastening
✔ Steel Framing – Structural connections in buildings
✔ HVAC & Ductwork – Secure sheet metal assemblies
✔ Heavy Equipment – Machinery and trailer manufacturing
✔ Electrical Enclosures – Reliable, vibration-resistant fastening
Why Choose Our Flange Self Drilling Screws?
✅ Longer Service Life – Advanced coatings resist rust & weathering
✅ Labor Savings – No pre-drilling required, faster installation
✅ Bulk Supply – Wholesale pricing for contractors (MOQ 10,000pcs)
✅ Certified Quality – ISO 9001, ASTM F1941 compliant
Bulk Ordering Options
-
Standard Sizes: #8 (0.164″) to #14 (0.250″)
-
Lengths: 1/2″ to 3″
-
Packaging: 1,000pc boxes, 5,000pc cases, palletized bulk
Request a Quote Today – Wholesale & OEM Inquiries Only
Reviews
There are no reviews yet.