Detailed Product Overview

These professional-grade self-drilling fasteners are manufactured from premium 410 martensitic stainless steel, a specialized alloy commonly referred to as stainless iron. This grade is specifically selected for its unique ability to undergo case-hardening thermal treatments to achieve exceptional mechanical surface hardness and structural toughness. Unlike traditional 300-series stainless steel options that are too soft to pierce metal tracks efficiently, our heat-treated 410SS screws effortlessly drill through mild steel sheets, galvanized iron plates, angle steels, and aluminum materials while guaranteeing optimal thread engagement and a tighter clamp. Technically, the broad truss head design acts as an integrated flange, providing an oversized bearing surface that distributes clamping load uniformly to prevent material pull-through or dimpling on thin substrates like plastic-steel doors, windows, and fiberglass sections. Built with a deep, precision-formed Phillips drive recess, these star-drive fasteners ensure stable engagement with power drivers, eliminating tool slippage and head stripping on automated assembly lines. Offering excellent surface gloss and a C3 corrosion rating without mandatory secondary platings, these highly versatile #6 to #12 fasteners provide an efficient, one-step locking solution for steel structure connections, metal curtain walls, refrigeration equipment, shipping containers, and marine environments.

Key Features

• Heat-Treated 410 Stainless Steel: Martensitic stainless composition yields extreme core strength and point hardness, easily biting into heavy iron plates and metal profiles.

• Oversized Truss Head Design: Broad dome-shaped head provides an expanded clamping surface area, securely holding thin sheets without surface marring or puncture.

• Aggressive Self-Drilling Tail: Precision-machined cutting tip ensures fast, slip-free center positioning and quick penetration into up to 4mm steel profiles.

• C3-Class Atmospheric Defense: Inherent material properties provide strong resistance to atmospheric moisture, weathering, and industrial chemical oxidation.

• High-Torque Phillips Recess: Engineered deep cross-drive prevents tool cam-out and ensures fluid torque transmission with automated screwdriver bits.

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.