ForgeFix Timber Fixing Screws have an extremely coarse thread for increased holding power in all types of decking timber. These single part, hardened screws have an ACQ resistant exterior grade coating with up to 1000 hours salt spray protection. Designed for use in decking construction. Also widely used in exterior timber, fencing and landscaping applications.Head: Hex Flange.Select Option 6.3 x 100mm Bag 206.3 x 150mm Bag 206.3 x 200mm Bag 206.3 x 250mm Bag 206.3 x 65mm Bag 206.3 x 87mm Bag 20 Add to Basket Quantity