Drywall Screw – Self Drilling Wafer Head 4.2 x 13mm – Zinc Plated – Box 1000

The 13mm self drilling wafer head drywall screw is the go-to fixing when you’re stitching metal track together in partition wall and ceiling systems. No pilot hole, no fuss. The self drilling point cuts straight through the steel track, and the low-profile wafer head sits flush without riding up or fouling the channel. These are rated for material thickness up to 3.0mm, which covers standard track gauges used in commercial and domestic drylining without issue.

Zinc plating gives them decent corrosion resistance for interior use, which is exactly where you’ll be using them. They carry an A1 fire classification, meaning they contribute nothing combustible to the assembly. On projects where fire performance documentation matters, that’s not a small thing.

Where Self Drilling Wafer Head Drywall Screws Get Used

These are a staple on any drylining job. When you’re running floor and ceiling track, or tying two sections of track together at a corner or junction, this is the screw that holds it. The wafer head profile is specifically designed for metal-to-metal work in track systems where a standard bugle head would sit proud and cause problems with subsequent layers. You’ll find them being used by partition fitters, ceiling contractors, and drylining teams across commercial fit-outs and residential builds alike.

Why the Wafer Head Matters

It’s not just a style choice. The wide, flat head distributes load across the track surface and resists pull-through in thin gauge steel better than a smaller head profile would. That’s the practical reason wafer heads became standard for this application, and it’s why substituting a different head type causes grief down the line.

Sold in boxes of 1000, these are priced for trade volume. If you’re running a fitting crew, a box doesn’t last as long as you’d think. Having stock on hand beats a trip to the merchant mid-job. At this price, there’s no reason to be running short.