For fastening the crests of Polycarbonate roof sheeting to timber battens or steel. With cutting fins for automatic forming of expansion holes.
Universal Polycarbonate Assembly (Polycarbonate Screw) For Timber or Steel
Universal Drill Point - The use of high tensile steel in roofing and cladding applications has developed the need for drill points of greater efficiency than traditional Type 17 screws. The Universal drill point is capable of penetrating metal up to 2.0mm thick and drilling into softwood and less dense hardwoods. Due to its versatility the Universal drill point is now commonly used in applications requiring pierce fastening of steel to timber.
5/16 Hex Drive
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