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Outdoor screws are purpose-built to cope with moisture, UV exposure, temperature changes, and movement in the structure over time. Using indoor-grade fasteners outside can lead to rust, staining, and even structural failure as screws weaken, swell, or shear under load.
Corrosion-resistant materials and coatings — such as A2 and A4 stainless steel, HP coatings, and hot-dip galvanising — help protect the fastener and the surrounding material. This is especially important in decks, fences, cladding, and outdoor framing where fixings are constantly exposed to the elements.
The right outdoor screw not only resists rust but also drives cleanly, grips securely, and reduces splitting in timber and composites. That means fewer callbacks, longer intervals between maintenance, and greater peace of mind on every exterior project.
Our outdoor screw range covers the key materials and environments you encounter in exterior work:
Outdoor screws from Craftsman Hardware are suited to a wide range of weather-exposed projects:
Selecting the correct outdoor screw for your material, exposure level, and load ensures every external project is built to last from the first fix to the final board.