Detailed Product Overview

These professional-grade wing-tip fasteners are manufactured from high-tensile SUS410 martensitic stainless steel, an alloy selected for its ability to undergo case-hardening heat treatment to achieve extreme surface hardness and superior mechanical torque. Designed specifically for wood-to-metal framing and heavy transportation flooring, these screws feature two engineered protrusion wings located just above the self-drilling point. As the screw passes through a timber plank, the wings ream a clearance hole larger than the screw thread, preventing the wood from climbing or splitting during installation. Upon striking the steel plate substrate, the wings instantly shear off, allowing the hardened threads to engage cleanly and tap directly into angle iron, channel steel, or metal sheets up to 4mm thick. Technically, the flat countersunk (CSK) head is designed with a ribbed under-head configuration that self-embeds into the wood, sitting completely flush with the surface to provide a snag-free layout. Featuring a deep, precision-formed Phillips drive recess that maximizes bit grip and resists driver cam-out, these customizable #6 to #12 fasteners provide an optimized, one-step execution path for vehicle bodies, shipping containers, metal curtain walls, and outdoor architectural decking assemblies.

Key Features

• Heat-Treated SUS410 Construction: Delivers exceptional tensile rigidity and point hardness, allowing the fastener to drill easily into heavy steel backing plates.

• Dual Clearance Reaming Wings: Creates an oversized clearance hole in the timber layer to prevent wood splitting, then shears off cleanly upon contact with the metal frame.

• Flush Countersunk (CSK) Profile: Flat head sits flush or slightly below the surface of the material, providing a neat appearance and a safe, smooth finish.

• C3-Grade Corrosion Resistance: High-purity material composition provides excellent surface gloss and exceptional durability against outdoor atmospheric rust and weathering.

• High-Torque Phillips Recess: Precision cross-drive prevents tool slippage and head stripping, ensuring smooth operation with automated power drivers.

Detailed Specifications Table

Business & Delivery Policies

Why Choose Us?

1. Decades of Manufacturing Excellence: With nearly 30 years (Since 1997) of expertise, we are a leading authority in high-performance hardware and precision industrial solutions.

2. Modern Large-Scale Infrastructure: Our 30,000 m² state-of-the-art facility is equipped with automated high-speed production lines to ensure precision and hygiene for every unit.

3. Integrated R&D & Design: Our dedicated team specializes in material science and ergonomic design, constantly optimizing product durability and user comfort.

4. Strategic Logistics Advantage: Located near major international shipping hubs, we provide streamlined customs handling and cost-effective delivery routes for our global clientele.