Use: drywall screws for quick and easy attachment of plasterboard to metal structures (CW, UW, CD, UD) Suitable for metal profiles up to 0.7 mm sheet thickness without pre-drilling. The trumpet head ensures a secure hold and allows a flush finish without damaging the cardboard layer of plasterboard. The needle tip of the fine thread screws allows for precise positioning of the screws as well as a quick biting and penetration of the metal profiles. The black phosphating treatment provides temporary corrosion protection and ensures good adhesion of filler. The chemical reaction with plaster and thus the possible appearance of rust stains is prevented. The H-force attack provides optimal power transmission and secure hold during processing. The Spax Gix-A plasterboard screws are and comply with the requirements of DIN EN 14566 "Mechanical fasteners for plasterboard systems". Box contents: 1 Spax box, pack of 1000 drywall screws, fine thread, full thread, phosphated, thread diameter (Ød1) = 3.9 mm x total length (Ls) = 25 mm, fully threaded length (LgV) = 19 mm, head diameter (Ødk): 8.3 mm, bit not included., Weight: 3.1305641204 Pounds, Manufacturer: Spax