SKU: 79758327034

Black Collated Drywall Screws Coarse Thread (1000 Pack)

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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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4.2 ★★★★★
Based on 14 reviews
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ymf
Dallas, US
★★★★★ 5
Good candies!
Wow a candy thats good for your teeth! I can finally say YES to my kids even after they brush their teeth! They taste good too! I was scared to try them and was pleasantly surprised!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 19, 2025
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PC
Chelsea, US
★★★★★ 3
Less flavor than the pops. Very disappointing.
I bought these after trying the lollipop type of the same brand. Honestly? I was disappointed in the lack of flavor in yhe drops versus the lollipop style. The reason I purchased the drops was because I do not like dealing with the stick of the pop and just wanted the sucker part of the candy. I thought being the same flavors that they would have the same taste. They do not. The drops have much less enjoyable flavor and are quite bland in comparison to the lollipop style. I guess I'm sticking with dealing with the stick to get any good flavor. I also wish the variety of the flavors in both the Zollipops and Zolli Drops was more evenly distributed. The orange are my favorite flavor and the ratio is low compared to the pink or purple and less flavorful pieces. Anyway, just my 2 cents on the difference I noticed between the two variations of the same product.
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Reviewed in the United States on May 23, 2026
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Verified Purchase
O'bie
Charlottesville, US
★★★★★ 5
Drops are easier to open
I like the zolli drops better than the pops. They are easier to open!
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Reviewed in the United States on May 25, 2026
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Barefoot in the Meadow
Port Orchard, US
★★★★★ 5
Delicious!
Perfect for those days when you need a little something. You will never know they're sugar free, amd the flavors are on point. These are in regular rotation in our home now - and guilt free!
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Reviewed in the United States on June 10, 2025
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grey_area
Bozeman, US
★★★★★ 5
Great option for fluoride-free families, has helped my sensitive teeth dramatically
This is a great non-fluoride toothpaste. Our whole family switched to nano hydroxyapatite instead of fluoride pastes, we have had great dental visits and no regrets. No one has had a cavity since switching 2 years ago, but three of the four of us didn’t have cavities to begin with. I would say that my own sensitivity to cold (something I’ve had for 40 years) has decreased significantly since using this daily. This paste is far more effective for sensitivity than high fluoride options have been for me. My two teenage boys both love this toothpaste. My teeth feel clean. I wouldn’t say the toothpaste whitens better than any other paste does. My mouth feels fresh after brushing. I like the idea of remineralizing tooth surfaces but I don’t know how I would quantify that. The flavors are all good, I would rank them as follows: lemon lavender, mint, cinnamon mint, cardamom, ginger (don’t get it if you don’t LOVE ginger). Cardamom is really nice but I could see getting tired of it. Ginger is kinda weird. My boys love the lemon lavender the best. The flavors can be intense but in a natural, not artificial way. It’s not too sweet at all like some pastes can be. This toothpaste is absolutely worth the higher price point. I feel good about my family using it.
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Reviewed in the United States on March 11, 2026

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