Frequently Asked Questions

Can I use roofing screws for both metal and timber battens?

While some roofing screws can be used for both metal and timber battens, the best results come from using fasteners designed for the specific material. For timber battens, Zenith® Type 17 Galvanised with Seal Timber Screws have hexagonal heads suitable for roofing applications, with a Top Lock design for crest fixing and reduced indentation during installation.

When should I use stainless-steel screws instead of galvanised screws?

Use stainless-steel screws in marine environments or where superior corrosion resistance is essential. Zenith® 304 Stainless Steel Self Tapping Screws are designed for external household construction and outdoor furniture where enhanced corrosion protection is required.

What’s the best product to attach timber battens to steel framing?

Zenith® Hexagonal Head Gold Passivated Metal Screws are designed for general-purpose fixing of timber and metal components onto metal surfaces. Simply screw directly through the timber batten into the steel frame using a hex driver bit - no pre-drilling required.

Can I use wood screws for outdoor projects? 

No. Moisture and varying weather conditions require a more durable screw for external applications. Wood screws, like the Zenith® Assorted Zinc Plated Steel Wood Screws, are ideal for general-purpose indoor applications, including woodwork, furniture, and cabinetry.

What’s the best screw for hard and soft timber applications for interior use?

Zenith® Gold Passivated Bugle Batten Screws are suitable for internal heavy-duty applications on a range of different timbers. The Bugle Head creates a flush profile, while the gold passivated steel finish provides moderate corrosion resistance.

I live on the coast - do I need to use stainless steel screws and fasteners?

Stainless 316 marine-grade is strongly recommended in coastal areas and severe corrosive environments to ensure long-lasting results. Unlike galvanised screws, which can eventually rust once their protective coating wears away, stainless steel provides long-term durability.

How do I install a picture hook into a brick wall?

Zenith® Wall Plugs are designed for light-duty, general-purpose fastening tasks in brick or masonry walls. The anchors expand within the drilled hole, creating a secure fixing point in solid masonry materials.

What does TPI mean?

TPI stands for threads per inch and determines how fine or coarse a screw’s thread pattern is. A higher TPI means better holding power in thin materials (such as metal panels 1-2mm thick) and less likely to tear the surface of the material. A lower TPI creates faster insertion and is ideal for softer materials like wood.

What is the best fastener for decks?

For a long-lasting, flush finish on hardwood and softwood timber deck boards look for Zenith® Type 17 304 Stainless Steel Decking Screws. Corrosion-resistant and durable, the screws are designed specifically for decking applications.

Can I use decking nails on treated pine?

Zenith® QUICKSHOT™ Drill Point 304 Stainless Steel Decking Screws are designed for general fixing into treated pine or soft timber where superior corrosion protection is required. The countersunk ribbed head creates a flush finish for all outdoor projects.

How do I install new gate hinges?

Position the Zenith® Scotch Tee Hinge in situ on the gate and check there’s adequate space for correct installation.

Fasten hinges to the gate with screws provided using a No. 2 Phillips bit at 1,000 RPM.

Check that the new hinge is secure without being fastened too tightly.