Harpoon Self-Tapping Screws

Harpoon self-tapping screws are reliable and have a long service life. They withstand large temperature swings, do not melt or break, while retaining a decent appearance. They are made from high-strength steel grades with various coatings: chrome, nickel, phosphate, zinc-plated.

SPAX Universal Self-Tapping Wood Screw	Roofing screws	Self-tapping screw for sandwich panels	Self-tapping screws

A wide range of harpoon self-tapping screws is available, differing by the type of materials being fastened:

• for installing sandwich panels, the fastener comes with a washer with a rubberized gasket to prevent moisture from entering the core material and to reinforce the fastening;
• for fastening metal to concrete, a variable-diameter thread is used, which prevents the self-tapping screw from spontaneously pulling out of the concrete mass;
• for joining profiled sheets and accessories, self-tapping screws with a shortened drill tip are used;
• for fastening LSF (light steel frame) structures, self-tapping screws with a reduced head height and a knurled underside are used.

Fasteners packed in a collated strip — for automatic screw guns, which simplify installation and reduce work time — are also in demand.

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