12GX20 Self-tapping screw thread Zinc plated Hex W/F Neo

The 12G × 20mm HWF NEO Roofing Screw is a durable fastening solution for roofing, cladding, sheet-metal and general construction applications. Manufactured from steel and finished with an ArmaGalv coating, this fastener is designed for reliable performance in demanding building environments.

The screw features a hex washer head with an integrated neoprene washer, providing a secure fixing while helping create a weather-resistant seal around the fixing point. Its coarse self-tapping thread is designed to provide efficient engagement when fastening suitable metal materials.

Manufactured to AS 3566.1, the ArmaGalv range is designed for building applications where corrosion-resistant steel fasteners are required. The 12G × 20mm size provides additional fixing length compared with the 16mm version, making it suitable for a wider range of sheet-metal and roofing applications.

The HWF NEO configuration combines a hexagonal washer head with a neoprene sealing washer. This makes it particularly useful for applications where the fixing point needs additional protection against moisture penetration.

Suitable applications include metal roofing, wall cladding, sheet metal, flashing, electrical installations, light construction and general trade work.

Whether you’re a roofer, electrician, builder, installer or maintenance professional, the Würth ArmaGalv HWF NEO provides a practical fastening solution for metal fixing applications.

Product Specifications