6-18×25 Black Phosphate Phillips Bugle Head Drywall Screws

Product Overview
The 6-18×25 black phosphate drywall screw is a dedicated fastener for gypsum board, manufactured from 1022A low‑carbon steel with quenching, and featuring a matte black phosphate surface finish. With a shank diameter of 3.5 mm, 18‑thread fine thread, total length of 25 mm, and equipped with a bugle countersunk head, cross recess, and self‑tapping sharp point, it requires no pre‑drilling and is suitable for 12.5 mm standard gypsum board. It is a general‑purpose fastening screw for residential and commercial ceiling and partition projects.

Product Applications
Residential Scenarios: Single‑layer gypsum board ceilings, wall features, and lightweight partitions in dry areas such as living rooms and bedrooms, suitable for wood framing and light‑gauge steel framing.
Commercial Scenarios: Large‑area light‑gauge steel gypsum board partitions and simple ceiling installations in offices and retail spaces, for batch installation.
Usage Restriction: Suitable for dry indoor environments only. Not for use in kitchens, bathrooms, basements, or outdoor humid areas, as it is prone to rusting and staining the wall surface.