Screw, chipboard, countersunk, pozi, stainless steel, no rib, GR A2-304, 3.5 x 20 mm, Fastbolt.

Chipboard screws are self-tapping screws most commonly designed with a single thread that runs all the way from the base of the head to the tip. Pozidriv head design ensures screwdriver head does not cam-out. Stainless steel is a family of iron-based alloys that contain a minimum of approximately 11% chromium, a composition that prevents the iron from rusting, as well as providing heat-resistant properties.