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Hex Flange Self Drilling Screw
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Hex Flange Self Drilling Screw: All-in-One Fastener for Industrial & Construction Needs
For engineers, construction teams, and metal fabricators, time and reliability go hand in hand—and our Hex Flange Self Drilling Screws deliver both. These all-in-one fasteners drill, tap, and secure in a single step, eliminating pre-drilling and reducing labor costs. With a built-in flange for superior load distribution and a hex head for easy torque application, they’re the top choice for metal-to-metal, metal-to-wood, and composite fastening across automotive, construction, and industrial sectors worldwide.
What Is a Hex Flange Self Drilling Screw?
A hex flange self drilling screw (also called a hex washer head self drilling screw) is a specialized fastener that integrates three functions: drilling, tapping, and clamping. It features a hexagonal head (for secure grip with wrenches or power drivers), an integrated flange (acts as a built-in washer to distribute pressure and prevent pull-through), and a self-drilling point (equipped with a drill-like tip to penetrate hard materials). Unlike standard self-tapping screws, it doesn’t require pre-drilled pilot holes, making it ideal for high-volume, time-sensitive projects. The flange design also eliminates the need for separate washers, streamlining the fastening process.
Core Specifications
We offer hex flange self drilling screws in a wide range of configurations to match diverse material thicknesses and application requirements. Custom sizes, materials, and coatings are available for bulk orders. Below are our standard technical parameters:
Parameter Standard Range Application Guidance Material Carbon Steel (1022, 4140) / Stainless Steel (304, 316) / Alloy Steel Carbon steel: General industrial use; 304 SS: Corrosion resistance for indoor/outdoor; 316 SS: Marine/chemical environments; Alloy steel: High-strength for heavy loads Screw Diameter 3.5mm - 10mm (#8 - #14, M4 - M10) 3.5-5mm (#8-M5): Thin metal sheets (0.5-2mm); 6-8mm (#10-M8): Medium steel (2-5mm); 9-10mm (#14-M10): Thick metal/composites (5-10mm) Length 12mm - 150mm (1/2" - 6") 12-30mm: Thin material fastening; 35-75mm: Standard metal-to-metal; 80-150mm: Deep penetration (e.g., metal to wood framing) Flange Diameter 7mm - 18mm Matches screw diameter: Larger flange for softer materials to prevent damage Point Type Type 1 (Drill Point) - Type 5 (High Penetration) Type 1: Sheet metal; Type 3: Thick steel; Type 5: Hard composites/concrete board Thread Type Coarse Thread (UNC) / Fine Thread (UNF) / Metric Thread Coarse: Fast installation in wood/soft metal; Fine: Secure grip in hard metal; Metric: Global industrial standard Surface Coating Zinc Plated (Clear/Blue) / Yellow Zinc Chromate / Hot-Dip Galvanized / Powder Coating Zinc: Basic rust protection; Yellow zinc: Enhanced corrosion resistance; Hot-dip galvanized: Outdoor/marine use; Powder coat: Color matching Tensile Strength 600 MPa - 1200 MPa Carbon steel: 600-800 MPa; Alloy steel: 900-1200 MPa (heavy-duty structural use) 3. Wide-Ranging Applications
Our hex flange self drilling screws are engineered for versatility, making them indispensable in industries where fast, secure fastening is critical:
- Metal Fabrication: Assembling steel frames, metal enclosures, HVAC ductwork, and sheet metal components—no pre-drilling saves production time.
- Construction & Building: Fastening metal roofing, siding, decking, and steel studs to wood or concrete substrates—flange prevents material damage.
- Automotive & Transportation: Securing body panels, brackets, and undercarriage components in cars, trucks, and trailers—high-torque hex head ensures tight fit.
- Electrical & HVAC: Installing electrical boxes, conduit brackets, and HVAC units to metal framing—corrosion-resistant coatings stand up to moisture.
- Marine & Coastal Projects: Stainless steel variants for boat hulls, docks, and coastal structures—resists saltwater corrosion.
- DIY & Home Improvement: Building metal furniture, installing garage door hardware, and repairing metal fixtures—easy to use with standard tools.
- Industrial Equipment: Assembling machinery, conveyor systems, and storage racks—high-strength design handles vibration and heavy loads.
4. Secure Packaging & Global Logistics
We understand that fasteners need to arrive in perfect condition—untangled, rust-free, and ready for use. Our packaging and logistics solutions are optimized for international shipping:
- Contractor Packs (Small Quantities): 100pcs-1000pcs per resealable plastic box with labeled dividers—easy to store and transport to job sites.
- Wholesale Bulk Packs: 5000pcs-50000pcs per corrugated carton or wooden pallet, wrapped in moisture-proof VCI (Volatile Corrosion Inhibitor) film to prevent rust during transit.
- Custom Branding & Packaging: Private label options with your logo, size markings, and safety data—ideal for distributors, retailers, and OEM partners.
- Global Shipping Solutions: Partner with DHL, FedEx, and UPS for express door-to-door delivery; sea/air freight for bulk orders. We support FOB, CIF, EXW, and LCL terms to align with your supply chain needs.
5. Why Choose Our Hex Flange Self Drilling Screws?
- All-in-One Function: Drills, taps, and clamps in one step—cuts installation time by up to 50% compared to standard screws.
- Built-In Washer Flange: Distributes pressure evenly, prevents pull-through, and eliminates the need for separate washers—saves cost and labor.
- Superior Grip & Durability: High-tensile steel and precision threads ensure a tight, vibration-resistant hold—no loose fasteners over time.
- Corrosion Protection: Premium coatings and stainless steel options stand up to harsh environments—reduces maintenance and replacement costs.
- Easy to Use: Hex head fits standard wrenches and power drivers—no specialized tools required for installation.
- Industry Certified: Meets ISO 14583, ANSI B18.6.4, and DIN 7504 standards—trusted by professionals worldwide.
Order Your Hex Flange Self Drilling Screws Today!
Ready to boost productivity, reduce labor costs, and ensure reliable fastening for your projects? Send us an inquiry now for a personalized quote, free sample pack, or technical support. Our team of fastener experts responds within 24 hours to help you find the perfect solution.
Hex Flange Self Drilling Screw
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Anping County Industrial Park, Hebei Province, China