Torx Decking Screw 10×40 is a type of screw commonly used for fastening wooden decking boards to a substructure, such as joists or sleepers. The screw measures 10mm in diameter and 40mm in length and has a Torx drive head that requires a matching Torx bit for installation.

The Torx drive head provides a secure grip and reduces the risk of cam-out, which occurs when the screwdriver slips out of the screw head during installation. This helps to ensure that the screw is driven in accurately and securely, providing a reliable and long-lasting connection between the decking board and substructure.

Torx Decking Screw 10×40 is typically made from high-quality materials, such as stainless steel or coated steel, to provide durability and resistance to corrosion and weathering. This makes them a popular choice for outdoor decking projects, where exposure to the elements can cause traditional screws to corrode and fail over time.