Self Tapping Screws

self tapping screws in various finishes and sizes

Premium Self Tapping Screws for Metal, Timber, and Multi-Material Fixing

Scrooz Fasteners offers Australia’s most comprehensive range of high-performance self tapping screws, designed for reliable fastening across steel, timber, plastic, and masonry. These precision-engineered fasteners are ideal for applications where a strong, threaded hold is required—without the need for pre-threaded holes.

Self tapping screws—also known as thread forming screws, sheet metal screws, or Type AB screws—are engineered with parallel threads that cut and form their own mating thread into the base material. While often confused with self-drilling screws, self tappers require a pre-drilled pilot hole for accurate installation, especially in metal substrates.

Our range includes pan head, countersunk, undercut countersunk, and mushroom head styles, available in hardened zinc-plated steel, 304 stainless, and marine-grade 316 stainless for high corrosion resistance. Suitable for fixing into sheet metal, aluminium, steel framing, timber battens, PVC, and wall plugs, they are a go-to solution for both trades and DIY.

With consistent compliance to AS 3566 standards, our self tapping screws deliver superior performance, durability, and holding power in demanding conditions. Full technical specifications, pilot hole size guides, and material test certificates are available on request.

Why choose Scrooz? We’re Australian-owned, ISO 9001 certified, and backed by years of experience supplying the construction, electrical, HVAC, and manufacturing sectors. Our screws are in stock for immediate dispatch, competitively priced, and supported by expert customer service.

Whether you're securing metal sheeting, installing fixtures, or anchoring brackets, trust Scrooz for self tapping screws that work first time, every time.

Explore our full range today and get fast delivery anywhere in Australia.

Types of Screws in this Range?

Self Tapping Screw Gauge Chart

Click the read more text below to see a useful chart with all the self tapping screw gauges in mm, this is useful when determining pilot drill size. Generally pilot sizes should be 0.5mm to 1mm smaller than the gauges listed below, this is just a guide. You can freely use whichever pilot size best suits your application, for thick steel applications you can up the pilot size slightly, for thin steel applications you can use a slightly smaller size.

Click To See Chart