Galvanised Metal Hexagon Head Tek Wood Stainless Steel Hex Self Drilling Screw With epdm Washers Roofing Screw

We have all standard DIN, BS, JIS and ISO fasteners and other industrial parts with well-equipped testing facilities and strong technical force.

Hexagon washer head drilling screws are a type of self-tapping screw that is commonly used in construction and woodworking applications. They have a hexagonal head with a built-in washer that provides extra support and prevents the screw from pulling through the material. The screw is designed to be drilled directly into the material, without the need for pre-drilling or pilot holes. The washer head also provides a larger surface area for the screwdriver to grip, making it easier to drive the screw into the material. These screws are available in a variety of sizes and materials, including stainless steel and zinc-plated steel, to suit different applications and environments.

Quality Control:
The quality control is strictly performed from buying raw materials in warehouse to different machining procession and to final packing.We have Magnetic Powder Detector, Material Testing Machine, Metallographic Microscope, such testing instruments, guarantee product high quality and beautiful appearance.

First, we have our own High-precision Digital Machining center for mould making in special Mould Workshop, excellent mould make product beautiful appearance and its size accurately.

The second, we adopt blasting procession, removing Oxidation surface, make the surface to be bright and clean and uniform and beautiful.