Screw Anchors are an universal fixing designed for use in all types of base material including concrete stone brick plasterboard and timber. No pre-drilling or plug required in most materials. Features / Benefits: Light duty fixing application such as signs shelf brackets and lighting and electrical fixtures. No pre-drilling required when screwing into wallboard or wood (check data sheet for additional information). When removed they leave a much smaller hole than toggles or other systems. Thread design prevents spinning and stripping Also known as: Grabcon Tapcons Tapper Pros Clipfix Material / Coating: Galvanised is a dull greyish colour and can be a little rough in appearance and is mainly used outdoors because of its superior corrosion resistance and proven longevity. Also known as HDG it is one of the best coatings for protection against rust. Galvanised fasteners have been used across many industries in Australia for over 150 years roofing steel buildings trailers bridges fencing power poles marina’s are just a few examples Fastener length: is generally measured from the point where the surface of the material will be when the fastener is installed to the end of the fastener. Although provided by one of our suppliers the brand supplied may be different. All material is advisory only and its use by anyone is entirely voluntary. Reliance on it for any purpose by anyone is at the sole risk of that person and Bolt and Nut Australia is not responsible for any loss claim or damages arising therefrom.