Roofing screw

A roofing screw is a fastener consisting of a straight shank with a thread cut at one end. At the other end is a drive feature used to drive the screw into the base: a slotted head or a hex head; in some designs these are combined, with a screwdriver slot located on the end face of the hex head.

By shape and design, the screw head can be:

• spherical or hexagonal;
• semi-recessed (raised countersunk) or countersunk;
• straight cylindrical or rounded.

Roofing screws are produced in a self-tapping version or a self-drilling version. The self-tapping type is used to fasten coverings to a metal base with a pilot hole of a smaller diameter drilled in advance. The self-drilling type has a drill point at the tip and works without pre-drilling.

Roofing screws are used not only for installing roof coverings, but also for cladding or constructing walls with sandwich panels and other materials. FLOK supplies roofing screws in the required sizes and volumes.