Drywall screws for gypsum boards
Black phosphate drywall screws are designed for fixing plasterboard to metal or timber. Fine threads bite the gypsum core without crumbling; bugle heads sit flush for easy taping. We supply 1-inch and longer lengths in trade packs (500–1,000 pcs) suited to Kenyan site consumption.
Other fasteners on our shelf
- Self-drilling screws (13 mm–32 mm) — metal-to-metal framing connections.
- Fiber-cement screws — flat-head, self-drilling for cement boards.
- Roofing screws — hex head with washers for box profile and iron sheets.
- Concrete nails — assorted sizes for timber brandering to masonry.
- General wire nails and staples — for timber ceiling backups and formwork.
How many screws per gypsum board?
As a rule, allow 30–40 screws per 4×8 ft board on ceilings (edges every 150–200 mm, field screws spaced per manufacturer). Buying in bulk from Crena saves repeat trips and keeps colour-matched batches on large projects.
Frequently asked questions
- What size screw for 9 mm gypsum ceiling?
- 1-inch (25 mm) fine-thread drywall screws to metal studs are standard; use 1¼-inch if fixing through board into timber.
- Do you sell screws in bulk for contractors?
- Yes — trade packs and repeat-order pricing are available at our Ruiru yard.