Spax cylindrical head, stainless steel screws are designed especially for wooden decking.
Stainless steel is commonly stipulated for outdoor building projects including decking because of the superior corrosion resistance.
Stainless steel is particularly recommended in marine environments. All Spax decking screws come in either A2 (304 grade) or A4 (316 grade) quality stainless steel (or both).
A2 stainless steel offers high abrasion and corrosion resistance.
A4 stainless steel delivers extreme anti corrosion and hardness performance thanks to the inclusion of molybdenum. A4 is especially recommended for salt water or corrosive chemical settings.
Spax decking screws feature a cylindrical head that drives neatly into the decking boards for effortless countersinking of each screw with no splitting of the timber.
This results in an impeccable finish. The T-Star plus bit delivers real driving torque for fast, clean, effortless fastening even in hardwoods.
Decking screws also feature the precision ‘Cut Point’ to reduce timber splitting. And you can say goodbye to creaking deck boards thanks to the brilliantly designed fixing thread sitting just beneath the screw head.
This ensures a strong bond between decking boards and the substrate. Spax screws for decks come in 5, 6, and 8mm thickness grades with lengths of 40mm to 120mm making them ideal for all your decking, boardwalk or footbridge projects.
We also supply the Spax wood to metal screws, which are ideal for where you want to affix fencing, screens or timber decking boards to steel joists.
And the special tip allows you to screw into 5mm steel without pre-drilling. Using the Spax Drive Stop set to the correct depth will ensure that every screw is embedded perfectly every time.
The Spax timber to steel screw is suitable for fixing decking boards from 16mm to 22mm and 35mm to 50mm thick to steel joists.
Spax recommend the use of the Spax Air Spacer in all horizontal applications to allow space for any timber or steel shavings and to prevent contact between the timber and the steel for additional corrosion protection.