GRK R4™ Multipurpose Star/Torx ScrewIn addition to a Torx-head design that eliminates cam-out slippage, these innovative self-countersinkingbits feature six cutting pockets beneath the head and sharp, saw-like lower threads to drive through a variety of materials smoothly, without tearing. Ideal for exterior purposes such as building…
GRK Pheinox R4 Stainless Steel ScrewsPremium 305 stainless steel screws from GRK are the ultimate for corrosion-free outdoor performance, which is why they come with a lifetime warranty against rust and staining. Each screw features an underhead with saw-blade like cutting teeth and six self-contained cutting pockets, which transport…
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