TYPE 17 SCREW CLASS 3 GALVANISED WAFER PHILLIPS HEAD

Type 17 screw, class 3 galvanised, with a wafer and Phillips head is a self-drilling timber screw for outdoor use that provides a low-profile, clean finish. It is primarily used for fastening timber, but also suitable for some metal applications. 

Product Description
Head Style: Wafer head (low-profile, wide flat head that provides a large bearing surface to distribute the load evenly and prevent pull-through on softer materials, creating a flush, neat finish).
Drive Type: Phillips drive (specifically Phillips No. 2 or No. 3, depending on the screw's gauge) for easy installation with standard drivers and reduced cam-out.
Point Type: Type 17 self-drilling point (a sharp point with a cut-out flute that removes wood chips and debris, allowing the screw to drill its own pilot hole in timber and preventing the wood from splitting, even near edges).
Material/Finish: Class 3 galvanised carbon steel for moderate corrosion resistance, making it suitable for external and exposed outdoor applications, including use with some preservative-treated timber.
Thread Type: Coarse tapping thread for a strong grip and high speed installation in most materials. 

Common Applications
General Purpose Timber Fastening: Ideal for a wide range of applications involving timber, hardwood, softwood, chipboard, and other composite materials.
Securing Brackets and Hardware: Used for fixing metal brackets, connectors, and various accessories in timber framing where a low-profile head is needed.
Cladding and Panelling: Suitable for securing lining boards, plywood sheeting, and panelling to subframes or timber battens.
Cabinetry and Furniture Assembly: The flush finish makes them ideal for joinery, shelving, and other applications where aesthetics are important.
Multi-material Fixing: Can also be used to fasten materials like thin sheet metal and plastics to timber substrates or even pierce thin steel (up to 0.75mm thick).