Hexagon Washer Head Self-drilling Screws

Hexagon Washer Head Self-drilling Screws - Reliable Fastening for Metal-to-Metal Applications

Product Features

• Integrated Washer Head Design: Provides increased bearing surface and prevents fastener pull-through in thin metal sheets.
• Self-drilling Tip: Eliminates the need for pre-drilling, enabling faster installation in steel, aluminum, and other metal substrates.
• Corrosion-resistant Coating: Zinc or stainless-steel coating ensures extended service life in outdoor or high-humidity environments.

Product Description

Hexagon Washer Head Self-drilling Screws are engineered for efficient fastening in structural and industrial applications. Manufactured under ISO and DIN standards, these screws combine a hex washer head and a precision-formed drill point to achieve both drilling and fastening in a single operation. The product is available in carbon steel and stainless steel grades, with surface finishes such as zinc plating or Ruspert coating to enhance rust resistance. Common long-tail keyword integrations include self-drilling screws for metal roofing, hex washer head screw for structural steel, and industrial-grade self-tapping fasteners.

Application Fields

This product is suitable for the following use cases:

• Metal roofing and cladding assembly
• Steel framing and construction joints
• HVAC duct installation and sheet metal fabrication
• Electrical cabinet and industrial equipment assembly

FAQ

1. What is the difference between a self-drilling screw and a self-tapping screw?

A self-drilling screw features a built-in drill point that allows it to penetrate metal or other materials without the need for a pre-drilled hole. In contrast, a self-tapping screw requires a pre-existing pilot hole. The hex washer head self-drilling screw streamlines installation, reducing labor time in large-scale metal fastening projects.

2. How does the coating affect corrosion resistance and durability?

The surface coating plays a critical role in determining corrosion performance. Zinc plating offers general corrosion protection suitable for indoor use, while Ruspert-coated self-drilling screws provide enhanced durability in outdoor and marine environments. For long-term installations exposed to moisture, stainless steel versions are recommended for optimal performance.

3. Can these screws be used for attaching metal sheets to wood or concrete?

Hex washer head self-drilling screws are primarily designed for metal-to-metal fastening. When fastening metal to wood, a self-tapping wood screw is recommended. For metal-to-concrete applications, specialized anchor systems or masonry screws should be used to ensure load-bearing stability.