Self-tapping screw for metal profile

Self-tapping screws for metal profile come in two types: sharp-point and drill-tip. They feature fine thread, with head shapes including flat, round, countersunk, and external or internal hex. The recess is designed for a flat or cross screwdriver tip or screwdriver bit.

Sharp-point self-tapping screws are used to fasten metal profiles and sheets up to 0.9 mm thick with a pre-drilled hole. Screws with a drill tip on the end of the shank fasten frame elements up to 2 mm thick without a pre-drilled hole. For a tighter fit against the base, some self-tapping screws for metal profile are fitted with press washers or a rubber seal.

Fasteners of this category are used to assemble metal-profile frames when installing ventilated curtain-wall façades, partitions, and when fastening brackets to exterior walls. They are also needed for metal production furniture and racking, as well as in mechanical engineering and other industries. For corrosion protection, self-tapping screws may have an oxide or zinc-plated coating.