Bi-Metal Stitching Screws for Sheet Steel

High performance bi-metal stitching screws designed for fixing sheet metal to sheet metal, offering superior corrosion resistance for demanding environments.

Timco Bi-Metal Stitching Screws – 6.3mm x 22mm – Hex Head – EPDM Washer – Self-Drilling – Box of 100

Size : 6.3mm x 22mm
Pack Quantity : 100
£32.24 ex VAT(£38.69 inc VAT)

In stock

£32.24 ex VAT(£38.69 inc VAT)
Add to cart
SKU: BMS22W16

What are bi-metal stitching screws?

Bi-metal stitching screws are designed for fixing thin sheet metal to sheet metal without pre-drilling. Also known as sheet to sheet screws or lap screws, they are used for joining overlapping metal sheets in roofing, cladding, and fabrication work.

Why choose bi-metal stitching screws?

  • Self-drilling point for fast installation without pre-drilling
  • Designed for stitching thin sheet metal up to 1.6mm
  • Stainless steel body for superior corrosion resistance
  • Hardened drill tip for strong drilling performance
  • Hex head with EPDM washer for a secure fixing

Where are they used?

Bi-metal stitching screws are commonly used for:

  • Fixing overlapping metal roofing sheets
  • Cladding and external panel systems
  • Sheet metal joints and lap connections
  • Applications in exposed or higher corrosion environments

When should you use bi-metal stitching screws?

Bi-metal stitching screws are the best choice when maximum corrosion resistance is required. They are ideal for outdoor, coastal, or industrial environments where standard coated screws may not offer sufficient protection.