The Story
Black collated drywall screws with a coarse thread are the standard fixing for attaching plasterboard to timber stud work. Available in four lengths from 25 mm to 42 mm, this 1000-pack is compatible with all standard collated screwdriver attachments for fast, continuous fixing on site.
Specifications
| Material | Steel |
|---|---|
| Finish | Black phosphate |
| Thread Type | Coarse thread |
| Nominal Diameter | 3.5 mm |
| Available Lengths | 25 mm, 32 mm, 38 mm, 42 mm |
| Drive Type | Collated (compatible with standard drywall screwgun attachments) |
| Pack Size | 1000 |
| Application | Internal use |
What it's used for
- Fixing single or double layers of plasterboard to timber stud partitions and ceiling joists
- Drylining work on new-build and refurbishment projects where speed of fixing is important
- Attaching plasterboard to treated timber framework in stud walls across residential and commercial sites
- General site joinery tasks where a collated black screw is specified by the drylining contractor
Fitting and handling
Use a collated screwgun attachment set to the correct depth-stop so the screw head sits just below the board surface without breaking the paper face. For 12.5 mm single-layer plasterboard onto timber studs, the 38 mm or 42 mm length gives sufficient thread engagement into the timber; use 25 mm or 32 mm for fixing into metal back-plates or thinner boards. Store packs in dry conditions indoors, as the black phosphate coating is suited to internal applications only and is not intended for external or high-humidity environments.
FAQ
What is the difference between coarse thread and fine thread drywall screws?
Coarse thread drywall screws are designed for fixing plasterboard into timber studs. The wider thread pitch bites quickly into softwood and holds firmly. Fine thread screws are intended for fixing into metal stud work, where the tighter thread grips the thinner metal without stripping.
What length drywall screw do I need for 12.5 mm plasterboard onto timber?
For a single layer of 12.5 mm plasterboard fixed to timber studs, a 38 mm screw is the most common choice. This gives around 25 mm of thread engagement into the timber, which meets standard drylining recommendations. Use 42 mm where a deeper bite is preferred or studs are irregular.
Are these screws suitable for outdoor or damp conditions?
No. The black phosphate finish provides basic corrosion resistance suitable for dry internal applications only. For external fixings or humid environments such as bathrooms, a stainless steel or zinc-plated screw should be used instead.
Nottage Timber Merchants supplies these collated drywall screws alongside a full range of sheet materials including plasterboard alternatives. Browse our MDF sheets collection for internal boarding and lining work. Next-day delivery is available to Bridgend and across South Wales on stocked items.
Description
Black collated drywall screws with a coarse thread are the standard fixing for attaching plasterboard to timber stud work. Available in four lengths from 25 mm to 42 mm, this 1000-pack is compatible with all standard collated screwdriver attachments for fast, continuous fixing on site.
Specifications
| Material | Steel |
|---|---|
| Finish | Black phosphate |
| Thread Type | Coarse thread |
| Nominal Diameter | 3.5 mm |
| Available Lengths | 25 mm, 32 mm, 38 mm, 42 mm |
| Drive Type | Collated (compatible with standard drywall screwgun attachments) |
| Pack Size | 1000 |
| Application | Internal use |
What it's used for
- Fixing single or double layers of plasterboard to timber stud partitions and ceiling joists
- Drylining work on new-build and refurbishment projects where speed of fixing is important
- Attaching plasterboard to treated timber framework in stud walls across residential and commercial sites
- General site joinery tasks where a collated black screw is specified by the drylining contractor
Fitting and handling
Use a collated screwgun attachment set to the correct depth-stop so the screw head sits just below the board surface without breaking the paper face. For 12.5 mm single-layer plasterboard onto timber studs, the 38 mm or 42 mm length gives sufficient thread engagement into the timber; use 25 mm or 32 mm for fixing into metal back-plates or thinner boards. Store packs in dry conditions indoors, as the black phosphate coating is suited to internal applications only and is not intended for external or high-humidity environments.
FAQ
What is the difference between coarse thread and fine thread drywall screws?
Coarse thread drywall screws are designed for fixing plasterboard into timber studs. The wider thread pitch bites quickly into softwood and holds firmly. Fine thread screws are intended for fixing into metal stud work, where the tighter thread grips the thinner metal without stripping.
What length drywall screw do I need for 12.5 mm plasterboard onto timber?
For a single layer of 12.5 mm plasterboard fixed to timber studs, a 38 mm screw is the most common choice. This gives around 25 mm of thread engagement into the timber, which meets standard drylining recommendations. Use 42 mm where a deeper bite is preferred or studs are irregular.
Are these screws suitable for outdoor or damp conditions?
No. The black phosphate finish provides basic corrosion resistance suitable for dry internal applications only. For external fixings or humid environments such as bathrooms, a stainless steel or zinc-plated screw should be used instead.
Nottage Timber Merchants supplies these collated drywall screws alongside a full range of sheet materials including plasterboard alternatives. Browse our MDF sheets collection for internal boarding and lining work. Next-day delivery is available to Bridgend and across South Wales on stocked items.
