SS304 Bimetal Self-Drilling Screws

Need strong, rust-proof screws that are time- and labor-saving? Our SS304 Bimetal Self-Drilling Screws are designed for heavy use and rough environments. With a hardened steel drill point and SS304 stainless steel body, these screws drill directly into metal or wood without pre-drilling.

They are the best choice for applications where corrosion resistance and hardness are the primary concerns, i.e., for roofing, construction, cladding, HVAC fitments, and PEB frames.

Key Features & Benefits

Self-Drilling Tip – Easily pierces thick materials up to 12 mm without pilot holes.

High Strength – Durable, hardened drill point for best performance on hard surfaces.

Corrosion Resistant – SS304 body ensures long-lasting performance even under outdoor or moist conditions.

Multi-Use – Specifically designed for metal-to-metal and metal-to-wood uses.

Washer Details

  • Material: Stainless Steel 304
  • Diameter: 16 mm / 19 mm
  • Thickness: 3 mm with 4 mm EPDM bonding

Made to form a watertight seal and resist weather or water erosion.

Available Sizes

Diameter: 5.5 mm and 6.3 mm

Drill Point #5 (useful for material thickness up to 12 mm)

These screws are a smart choice when you need quick installation, long life, and ultimate dependability—especially in corrosive conditions.