Timbosite Decking M4 x 40mm Screws - Pack of 100

Timbosite Decking Screws are the recommended fixing solution for securing your decking boards, joists, and subframe components throughout your installation. The M4 40mm is ideally sized for use with Timbosite decking boards and composite joists, providing a secure, reliable fixing with the thread depth needed to hold boards firmly without over-penetrating the subframe beneath.Supplied in a pack of 100, there are enough screws to handle a complete decking project or to keep in reserve as a practical site supply. Using manufacturer-recommended screws throughout your installation ensures compatibility, consistent fixing performance, and no risk of corrosion or staining on the board surface.