Description
AnchorMark Decking Screw 45mm S2 TTA 316SS 5.5mm 663650 is a professional-grade timber-to-aluminium fastener engineered for securing hardwood and composite decking to aluminium joists. This premium 316 marine-grade stainless steel screw features a wing drill tip for self-drilling capability through aluminium without pre-drilling and a barefoot-safe step head design that sits flush with the deck surface. The innovative Sit®-Drive system (TX20 compatible) provides superior torque transfer and reduces cam-out during installation.
The 5.5mm diameter x 45mm length is specifically designed for TTA (timber-to-aluminium) applications where corrosion resistance is critical. The wing tip drills cleanly through aluminium joists while the sharp thread design ensures secure grip in hardwood decking materials. The step head countersinks perfectly creating a smooth barefoot-safe finish ideal for outdoor living spaces and pool decking.
These screws are perfect for coastal environments, marine applications, and high-moisture areas where maximum corrosion resistance is essential. The 316 stainless steel construction delivers superior performance compared to 304 grade in saltwater and chlorinated environments. The Sit®-Drive engagement system provides positive bit retention and consistent torque application reducing installer fatigue on large decking projects.
Includes:
- AnchorMark 45mm Decking Screws (100 pack)
- 316 Marine-Grade Stainless Steel
- Wing Drill Tip
- Barefoot-Safe Step Head
- Sit®-Drive / TX20 Compatible
- 5.5mm Diameter x 45mm Length
All our orders are carefully packaged and shipped with Australia Post.
PROCESSING TIMES
Your order will be processed within 1-2 Business days. Most orders are shipped within 1 business day.
SHIPPING TIMES (AUSTRALIA)
Standard 1-5 Business Days
Express 1-3 Business Days
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at jasonh@hornibrooks.com.au. Please note that returns will need to be sent to the following address: 2-3, 147 Marshalltown Rd Geelong, VIC, Australia 3216
If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at jasonh@hornibrooks.com.au.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items or gift cards.
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
European Union 14 day cooling off period
Notwithstanding the above, if the merchandise is being shipped into the European Union, you have the right to cancel or return your order within 14 days, for any reason and without a justification. As above, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too.
If more than 15 business days have passed since we’ve approved your return, please contact us at jasonh@hornibrooks.com.au.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.