Timber Screws

Timber Screws for Framing, Joinery and Cladding

Timber screws are the workhorse of residential construction. Whether you are running a wall frame, fixing cladding, laying flooring, or fitting joinery, the right head type and gauge keeps the job moving and the finish clean. We stock over 170 timber screws across bugle head, countersunk, wafer head, hex head, button head, and washer head styles, with delivery to Sydney, the Blue Mountains, Wollongong, and the Central Coast.

Choosing the Right Head Type

Head type determines how the screw sits in or on the material. Bugle head screws are the go-to for framing and sheeting — the curved underside drives flush without tearing the surface. Countersunk screws sit level with or below the surface, making them the right call for joinery and internal fit-out where a clean finish matters. Wafer head screws spread the load across a wide bearing surface, useful for fixing particleboard flooring and sheet materials where pull-through is a concern.

For applications where you need a spannable fixing, hex head screws can be driven with a socket or impact driver and work well in structural and frame-to-frame connections. Button head and washer head styles round out the range for decorative and load-bearing applications respectively. If you are building a deck, our decking screws are purpose-made for treated pine, hardwood, and composite boards and offer better corrosion resistance outdoors.

Coatings, Gauges and Pack Sizes

Coating choice matters when timber and moisture interact. For interior work, zinc-plated screws are standard. For external applications, treated pine, and anything exposed to weather, step up to Class 3 galvanised as a minimum, or Class 4 for high-corrosion environments. Gauges run from 6g through to 14g with lengths from 25mm to 150mm, covering everything from trim fixings to structural applications. Trade packs and bulk boxes are available on most lines. Part of our broader fasteners range from an Australian-owned family business based in Western Sydney.

Why Buy From Blacktown Building Supplies?

Why shop with Blacktown Building Supplies:

• Fast delivery across Sydney and beyond: We deliver to Sydney, the Blue Mountains, Wollongong, and the Central Coast. Order online and we will take care of the rest.
• Click and collect from Arndell Park: Order online and pick up from our Western Sydney warehouse at a time that suits you.
• Trade pricing and bulk packs available: Competitive pricing for tradies and contractors, with bulk packs across most product lines. Ask us about a trade account.
• Huge range, one supplier: Fasteners, timber, sheet products, cladding, doors, and cement, all under one roof. Sort the whole job without switching suppliers.
• Australian-owned family business: Based in Western Sydney, we have been serving tradies and homeowners for years. Real people, real stock, real advice.
• Order online 24/7: Browse the full range, check stock, and place your order any time. Pickup or delivery, we will have it sorted.

Yes, We Can.

Need help choosing the right gauge or coating? Call us on 1300 554 775 or get a fast online quote and we will have it sorted.