What is the difference between fine and coarse thread plasterboard screws?
Fine thread plasterboard screws have a tighter pitch that cuts into and grips thin steel, so they're the ones for fixing plasterboard to metal studs. Coarse thread screws have a wider pitch that grabs and holds in wood, which makes them right for timber studs. Put coarse thread into metal and it spins and strips. Put fine thread into timber and the hold is weaker.
Which screws should I use for plasterboard on metal studs?
Fine thread plasterboard screws like these TIMCO bugle head screws. They're rated for steel stud and track up to 0.6mm thick and give a secure, spin-free fix. Just match the length to your board build-up so the screw fully engages the stud.
Are these the black plasterboard screws, and what is the finish?
Yes. They're sold as "Black" plasterboard screws. That dark grey/black colour comes from a phosphate conversion coating on carbon steel, which suits clean, dry interior conditions (Corrosion Rating 1). They aren't intended for exterior or damp environments.
What drive bit do I need?
A Phillips PH2 bit, and a matched S2 driver bit comes in the pack. The PH2 recess in the bugle head gives positive engagement with minimal cam-out on a screw gun or drill-driver.
What length drywall screw do I need?
Choose a length that passes through the board and engages the stud by roughly 10mm or more. These run from about 25mm up to 100mm. Single-layer boarding usually takes 25 to 38mm, while thicker or double-layer build-ups need longer screws.
Are TIMCO plasterboard screws fire rated?
They carry Fire Classification A1 and are manufactured to BS EN 14566:2008, which makes them suitable for specification-grade drylining work.
Order in 200 or 1000-piece trade boxes across the full length range. Boarding onto timber studwork instead? Choose a coarse thread drywall screw for that.