Do you need to pre-drill decking before screwing?
Most of the time you do not. The sharp point and ribbed head let these screws sink into softwood boards on their own. If you are fixing close to the end of a board, or working with a dense or brittle hardwood, drill a small pilot hole first. That keeps the timber from splitting.
What spacing should I use, and how many screws per board?
Fix two screws at every point where a deck board crosses a joist. Keep each screw around 15 to 20mm in from the board edge. On a standard 144mm board that gives you a neat, even pattern and a firm hold that stops the boards cupping or lifting over time.
Are these for softwood or hardwood decking?
Both are listed as substrates, so they will drive into hardwood. That said, this is the economical softwood decking screw in the range. If you are laying a hardwood deck, a pilot hole helps every time, and a higher-spec screw is often the better call for dense boards.
What length green decking screw do I need?
Pick a length that goes through the board and gives you a solid bite into the joist below. For a 22mm to 25mm softwood board, a 60mm or 65mm screw is the usual choice. Thicker boards want a longer screw so plenty of thread lands in the joist.
Will the green coating stop the screws rusting?
The exterior green organic finish is plated to handle up to 500 hours of salt spray testing, with a corrosion rating of 3. That suits normal garden decks and outdoor timber. For a deck near the coast or one that stays wet, choose a screw with a higher salt spray rating.
What driver bit fits these screws?
A PZ2 Pozi bit. Fit a fresh bit and keep firm pressure on the driver as the screw goes in. That gives the best grip and keeps cam-out to a minimum across a full pack.
