10g (4.8mm) x 75mm B8® Bremick MultiONE™ Countersunk Truss Torx (T20) Multi Screws Treated Pine

About Bremick MultiONE Screws

Bremick MultiONE® countersunk truss screws with the Revolution B8® coating for high outdoor corrosion resistance. T20 Torx drive across the range, sized in gauge x length format for batten, decking and treated-pine assembly work. Single-source from Bremick Fasteners.

Recommended use Galvanising has been the proven outdoor coating for fasteners for decades - external building work, structural framing, fencing, decking, retaining walls, marine and coastal construction, anything exposed to weather. Newer coating advances - Class 4, Bremick B8 and Hobson X9 - build on this with longer service life and better resistance to severe coastal and industrial sites.

Frequently Asked Questions

Material & Coating

Galvanised Screws come with different coatings for different environments. The Australian standard for screws is AS 3566 - the higher the class, the more rust protection. Class 4 is our preferred minimum.

Bremick Revolution B8 Bremick's top coating - twice as protective as Class 4. Built for severe coastal and industrial sites, including beachfront work within 150 metres of breaking surf. Bremick warrants these screws for up to 30 years inland and 10 years on the worst coastal sites. The coating is also 8x harder than Class 4, so it survives self-drilling without rubbing off.

Important Match the coating to where you're building. Class 4 is our preferred minimum and handles severe coastal sites within 1 km of the surf. For beachfront work (within 150 metres of breaking surf) or heavy industrial sites, use Bremick B8 or Hobson X9. See our full coating comparison, or send us your postcode and we'll match it for you.

About treated pine Treated pine is softwood infused with copper-based preservatives so it resists rot, termites and weather. It's the standard timber for outdoor framing, decking and retaining walls. The preservatives eat through zinc plating and uncoated steel over time. Pick galvanised, Class 4, Bremick B8, Hobson X9, stainless or Bi-Metal screws - never plain or electroplated-zinc.

Thread Pitch & Terminology

Thread Pitch (TPI)TPI stands for "threads per inch", which literally means the number of threads within each inch on a screw, a bolt or a fastener. To determine the TPI of a screw, count the number of threads contained within an inch of length on the fastener. If the screw is less than an inch long, count the threads in half an inch and multiply by 2. The higher the number, the finer the thread. For timber screws, a coarse thread (lower TPI, typically around 8 to 12) is better for softwood, structural framing and decking timber - the bigger bite into the softer fibres gives a stronger grip with less risk of stripping. A fine thread (higher TPI, typically around 24 and above) is better for hardwood, where the tight grain lets a fine thread cut cleanly without splitting the timber.

Need every size? See our full screw gauge sizing chart for every standard gauge with diameter in mm and inch.

How to Measure

Fastener Length This product has a flush-fitting head, so the length is measured as the overall length - from the tip of the thread to the top of the head. The head is included in the size.

Thread Length On a screw the thread length runs from the start of the unthreaded section (called the shank) to the end of the thread. To view the thread length for this product, select a length above.

Resources

About the Brand

Bremick · Bremick Fasteners · Australian

Bremick is an Australian fastener brand with a complementary driving-accessory range. Predominantly known for self-tapping and structural fasteners, Bremick supplies matching driver bits and nutsetters under the same brand to support its fastener range.

Range: Bremick's Driving stock covers Phillips, Square and Torx insert bits sized to match its self-tapping and structural fastener lines.

Positioning: Trade-grade tooling sized to Bremick's fastener catalogue. Specify where the install workflow standardises on Bremick fasteners.

Pricing & Delivery

Includes GST, a Tax Invoice and Free Standard Delivery anywhere in Australia.

Buy with Confidence

15+ years selling online · 25,000+ stock lines · 200 million pieces ex-stock in Brisbane QLD.

Disclaimer

Technical data Researched and compiled from numerous industry sources for the sole purpose of providing basic information. All material is advisory only and its use by anyone is entirely voluntary. Reliance on it for any purpose by anyone is at the sole risk of that person, and Bolt and Nut Australia is not responsible for any loss, claim or damages arising therefrom. In developing this information, Bolt and Nut Australia has made a determined effort to present it accurately.

Measurements Sizes are taken from supplier catalogues or hand-measured and should be used as a guide. Minor variation between batches is normal. We only stock Bremick for this product; substituting another brand is rare and would always be confirmed with you first.

Product Photos & PDF Data Sheets Represent the product type, not exact size. PDFs are a reference guide only. Specifications may change without notice.

If you see any problems with any of our specifications or you require additional information please contact us.