SKU: 79758327034

Black Collated Drywall Screws Coarse Thread (1000 Pack)

Sale price$15.70 Regular price$17.44
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Description

Black Collated Drywall Screws Coarse Thread (1000 Pack)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

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.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 79758327034

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Kaleigh Pipho
Alexandria, US
★★★★★ 5
Good but
Size: 40-50 HP
Bought and installed about a year ago. Fit exactly right and still holding up. Would buy again.
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Reviewed in the United States on May 2, 2026
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mike james
New York, US
★★★★★ 5
Oem quality, great kit
Size: 35-60 HP
Oem quality kit , got me back on the water,diy
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Reviewed in the United States on May 2, 2026
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Scottytoohotty
San Leandro, US
★★★★★ 1
DO NOT BUY THIS GARBAGE
Size: 20-35 HP
DO NOT BUY. Stopped working after 2nd trip total of 2 hours use. Not returnable after 30 days. Could easily ruin your engine. Expensive garbage.
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Reviewed in the United States on March 19, 2026
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Thomas W.
Lowell, US
★★★★★ 5
Looks very good quality to me.
Size: 85-300 HP
Everything looks good quality to me. I find it odd that the people leaving bad reviews with pictures of broken and melted impeller, when you can clearly see the brass on the inside is brown and dirty like old pennies and mine is shiny new. It's almost like the took the pictures of the ones they replaced to get a refund and a free repair kit.
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Reviewed in the United States on April 26, 2026
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Amazon Customer
Waukegan, US
★★★★★ 5
Well made materials.
Arrived on time and well packaged. Good quality materials and exact fit. Perfect fit, Easy to install. Make sure to review installation instruction. Don't put the gaskets in the wrong place. Will buy again from this vender.
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Reviewed in the United States on September 17, 2025

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