Zinc Plated Bi-Metal Self Drilling Screw

Hex Washer Head Bi-Metal Self-Drilling Screws

Product Overview

Hex Washer Head Bi-Metal Self-Drilling Screws are high-performance fasteners that combine stainless steel and carbon steel through a welding process. This unique construction offers the corrosion resistance of stainless steel while retaining the drilling power of carbon steel, making them ideal for high-end construction projects that demand both durability and efficiency.

Product Advantages

• Superior Corrosion Resistance
  The head and shank are made from 300-series stainless steel, ensuring excellent rust and corrosion resistance, even in harsh environments.

• High Drilling Efficiency
  The drill tip is made from hardened carbon steel, enabling fast and precise drilling through metal surfaces without requiring pre-drilling, which improves installation speed.

• Multiple Coating Options
  To enhance durability and longevity, the screws are available in two surface treatment options:

  • Zinc Plating - Provides standard corrosion resistance.
  • Ruspert Coating - Offers superior anti-corrosion protection for extreme environments.

Internal Performance

• High Strength and Ductility
  The bi-metal construction offers both strength and flexibility, ensuring reliable fastening and reducing the risk of brittle failure under high stress.

• Hydrogen Embrittlement Resistance
  The 300-series stainless steel composition makes the screw resistant to hydrogen embrittlement, increasing its reliability in demanding applications.