Collated Drywall Screws Coarse Thread Black Phosphate 3.5 x 25mm (Box of 1000)

Dynamite Hardware 3.5 x 25mm collated drywall screws – coarse thread, black phosphate – supplied in a box of 1000 (20 strips of 50). The coarse thread grips timber studs and battens firmly, and the bugle head sits neatly flush. At 25mm it's the short size for single-layer board work.

Key features

• Coarse thread bites hard into timber studs for strong pull-out resistance
• Bugle head seats flush without tearing the plasterboard paper
• Sharp 25° point – no pilot hole needed
• Black phosphate finish for internal, dry use
• Plastic collation strip feeds smoothly in autofeed screwdrivers
• PH2 Phillips drive

Specification

Packaging may vary from the image shown. Screws supplied as specified.

Applications

Ideal for fixing plasterboard and drylining boards to timber studs, joists and battens – walls, ceilings and partitions on new builds, extensions, renovations and fit-outs. For internal, dry environments.

FAQs

Will these fit my screw gun?

These collated strips are designed to be compatible with the autofeed attachments and collated screwdrivers from all leading power tool brands. They come on standard 50-screw strips. If you're unsure, check your attachment takes 3.5mm screws at 25mm.

Coarse, fine or self-drilling – which do I need?

Coarse thread for timber studs and battens; fine thread for light-gauge metal studs and track up to 0.6mm; self-drilling for heavier steel up to 2mm.

Which length should I choose?

Go by what you're fixing through: shorter screws (25–38mm) suit a single layer of standard plasterboard, longer ones (45–55mm) suit thicker or double-layer boards, and the longest sizes are for thick insulated boards. Always check the board manufacturer's fixing guidance.

How much is delivery?

We deliver nationwide across Ireland, and delivery is free on orders over €100.

Related products

Need another length? See the full range of collated coarse thread drywall screws, including trade tubs. Fixing to metal studs? See our collated fine thread and self-drilling drywall screws. For loose screws, see our coarse thread drywall screws, or browse all drywall screws.

Nationwide delivery across Ireland – free on orders over €100.