Phillips Flat Head Self Drilling Screws w/ Wings
Phillips flat head self drilling screws with wings, also called header Tek screws, fasten wood to steel. We stock 12-24 and 1/4-20 sizes in zinc plated steel and with a 1,000 hour salt spray exterior coating. Choose a finish below.
Specifications
- Head: Phillips flat, #3 Phillips drive
- Sizes: 12-24 and 1/4-20
- Point: #3 or #4 (see each page)
- Finishes: zinc plated; 1,000 hour salt spray exterior coating
Common Uses
- Wood headers and nailers to steel
- Plywood and decking to steel framing
- Trailer floors and truck beds
FAQ
What do the wings do?
The wings ream a hole in the wood that is larger than the threads, so the threads don't grab the wood. When the wings hit the steel they break off, and the threads tap into the steel. That pulls the wood tight against the steel.
What is a self drilling (Tek) screw?
A self drilling screw has a drill bit point, so it drills, taps and fastens in one step with no pilot hole. The point number tells you how thick a metal it can drill: the higher the number, the thicker the metal.
Related: Zinc Plated | Exterior Coating | Phillips Wafer Head Self Drilling
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