Self-Tapping Screw A2

A self-tapping screw A2 is a fastener: a threaded shaft with a point at one end and a head at the other. Unlike other types of fasteners, it does not require a pre-drilled hole: it is driven into the base with a screwdriver, wrench or power drill.

The designation A2 indicates the material — 08×18N9 stainless steel, low-carbon, with a specific nickel and chromium content. By head shape, A2 self-tapping screws come in spherical, round (button), square, hexagon and countersunk types. Compared to a regular wood screw, the A2 self-tapping screw has a thinner shank and a wider thread pitch.

Applications of A2 self-tapping screws:

• roofing work (with rubber washers);
• manufacturing and installation of window and door units;
• finishing work with plywood, plasterboard, fiberboard, particleboard and other sheet materials;
• installation of ventilated curtain wall façades;
• manufacturing of furniture and decor items.

The type and size of the A2 self-tapping screw are selected depending on the task.