Premium Flange Self Drilling Screws – Corrosion Resistant Fasteners for Construction & Manufacturing | Wholesale Pricing（2025）

Industrial-Grade Flange Self Drilling Screws for Professional Construction & Manufacturing

Product Overview:
Our premium flange self drilling screws provide heavy-duty fastening solutions for steel construction and metal fabrication applications. Featuring an integrated flange washer design, these carbon steel screws eliminate the need for separate washers while providing superior load distribution.

Key Features:

High-performance carbon steel construction (Grade 4.8/8.8 available)
Self drilling point penetrates up to 12mm steel without pre-drilling
Dual corrosion protection options:
- Zinc plating (blue/white/yellow) – 500hr salt spray resistance
- Phosphating (black) – enhanced paint adhesion
Flange head design prevents over-driving and material damage
Phillips/hex drive options for power tool compatibility

Technical Specifications:

Sizes: #8-#14 (4.2mm-6.3mm) diameter
Lengths: 12mm-75mm standard (custom available)
Threads: Type AB for optimal material engagement
Packaging: Bulk boxes (1,000-5,000pc) or pallet quantities

Industrial Applications:

Metal roofing and wall systems
Steel framing construction
HVAC and electrical enclosures
Heavy equipment manufacturing
Transportation and trailer assembly

B2B Advantages:
✓ Wholesale pricing for bulk orders (MOQ 10,000pc)
✓ Custom packaging and branding available
✓ Just-in-time delivery programs
✓ Technical support for specification assistance

Certifications:

ISO 9001:2015 certified manufacturing
ASTM F1941 compliant
RoHS compliant materials

Available in zinc plated or phosphated finishes to meet your project requirements. Contact our industrial sales team for volume pricing and technical specifications.

Premium Flange Self Drilling Screws – Corrosion Resistant Fasteners for Construction & Manufacturing

Table of Contents

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

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