Wing-Tip Screws for Timber to Heavy Section Steel

Wing-tip screws, also known as wood to metal screws or wing screws, are designed for fixing timber directly to heavy section steel up to 12mm without pre-drilling.

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Wing-Tip Screw - Heavy Section Steel - Bi-Metal

Wing-Tip Screw - Heavy Section Steel - Bi-Metal (4)

Wing-Tip Screw - Heavy Section Steel - Zinc

Wing-Tip Screw - Heavy Section Steel - Zinc (5)

What are wing-tip screws?

Wing-tip screws are specialist fixings used to attach timber to steel. The wings ream out the timber during installation, allowing the screw to spin freely without binding. Once the wings reach the steel, they break off so the thread can tap directly into the metal.

Why use wing-tip screws?

  • Designed for fixing timber to steel up to 12mm thick
  • Wing-tip clears timber to prevent thread binding
  • Self-drilling point removes the need for pre-drilling
  • Countersunk head provides a flush finish in timber
  • Fast and efficient installation for timber to metal fixing

How do wing-tip screws work?

As the screw drives through timber, the wings cut a slightly larger hole. This prevents the thread from gripping too early and allows the screw to reach full drilling speed.

When the screw reaches the steel, the wings snap off. The drill point then cuts into the steel, and the thread forms a strong and secure fixing.

Zinc vs bi-metal wing-tip screws

Choosing the right finish depends on the environment and level of corrosion resistance required:

Type Corrosion Resistance Best For When to Choose
Zinc Wing-Tip Screws Low Internal and dry environments Use when corrosion is not a concern and cost efficiency is important
Bi-Metal Wing-Tip Screws High External, exposed, or higher moisture environments Use when durability and corrosion resistance are required

Where are wood to metal screws used?

Wing-tip screws are commonly used for:

  • Fixing timber battens to steel frames
  • Roofing and cladding support systems
  • Timber to steel construction
  • General building applications where timber meets steel

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Frequently Asked Questions

What are wing-tip screws used for?
Wing-tip screws are used for fixing timber to steel, especially where thicker steel sections are involved.

Do wing-tip screws need a pilot hole?
No – the self-drilling point allows them to cut into both timber and steel without pre-drilling.

What is a wood to metal screw?
A wood to metal screw is designed to fix timber directly to steel. Wing-tip screws are a specialised type that prevents binding in timber during installation.

What is the difference between zinc and bi-metal wing-tip screws?
Zinc screws are suitable for internal use, while bi-metal screws offer higher corrosion resistance for outdoor and exposed environments.

What are wing screws?
Wing screws are another name for wing-tip screws. They refer to the small wings on the screw that clear timber before drilling into steel.