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Self-Drilling Heat-Treated Hardwood Terrace Screws

Heat-Treated For Hardness

deckwise heat treated stainless steel screw

TTAP® TORX® T15 Screws

Our TTAP® TORX® T15 screws are self-drilling; manufactured from high 8-18 Grade stainless steel; heat-treated for high hardness; and 4 sided nail point for sharpness.

  • Superior screw driving
  • TTAP® TORX® T15 Star Drive
  • Authentic TTAP® combined with TORX®
  • Stick-fit no wobbling bit housing
  • One hand operation without magnetic holder
  • Reduce drive tool usage
  • Improved productivity
  • Greater torque and drive tool life

Less Stripping, Less Snapping, Less Headaches!

HTSS™ screws from DeckWise® are Heat-Treated and Self-Drilling Stainless Steel hardwood screws manufactured with a specially designed four-sided point including a serrated thread design to reduce the risk of plank splintering, cracking and splitting. Even while screwing close to the plank edge.

HTSS™ stainless steel screws are an 18-8 heat treated screw for superior strength and durability. HTSS™ screws are manufactured with a patented locking TTAP® T15 Star Drive head. This means less stripping, less snapping, and less headaches. Installing invisible terrace fixings, hidden cladding fixings, and face screwing has never been easier.

You may include HTSS™ decking screws in DeckWise® Hardwood Deck Fixing Kits.

* TTAP® is a registered trademark of TtapDrive AS

ttap screws
ttap htss diagram part 1
ttap htss diagram part 2

Pre-Drill Timber Planks

When using any type of hardwood screw, we suggest pre-drilling pilot holes for any specie of hardwood. The DeckWise® HTSS™ (Heat-Treated Stainless Steel) screw is a self-drilling screw with threads that bite and pull inward for maximum grip and hold-down power. Even with "self-drilling" screws, pre-drilling will reduce the chance of timber planks cracking during installation and will save on overall timber costs. This screw will produce a clean and professional finish for top-side face screwing or with invisible terrace fixing clips. (Pre-drilling is not necessary when installing most softwood planks.)

Read why pre-drilling preserves hardwoods & saves time... Read More 

Exceptionally Efficient for Dense Hardwoods!

Heat treated (baked) for hardened toughness and performance, DeckWise® HTSS™ timber screws are ideal for use in dense exotic hardwoods or thermally modified (heat-treated timber) material.

We recommend pre-drilling prior to any installation, whether it be face screwing terrace planks, invisible cladding fixings or installing invisible terrace clips.

Interested in an interchangeable 3-in-1 decking tool to help get the job done quick? Check out the DeckWise® Drill & Drive™ drill bit set. It includes 3,2 mm bits, T15 tips, and 9,5 mm countersink bit.

ttap demonstration

DeckWise® HTSS™ Decking Screws can now be included our Invisible Terrace Fixing Kits.

Size 4,2 x 45 mm 4,5 x 50 mm
100 CT
350 CT
ttap screws
deckwise warranty

DeckWise® Fastener Screws Limited Warranty

To make a DeckWise® product claim, warranty registration form must be completed here:

Limited Warranty
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