100mm Black Drywall Screws Coarse Thread (500/Box)
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Product Overview
Delivery & Returns Information
How Our Delivery Works
We work with a nationwide network of trusted suppliers. As a result, items in your basket may be supplied by different suppliers and delivered separately. Where this applies, you'll see multiple delivery charges at checkout. We always aim to group products from the same supplier to keep delivery costs as low as possible.
Delivery Areas & Charges
Delivery charges listed on our website apply to mainland UK, excluding the following postcode areas: AB, CF, DD, DG, FK, KW, IV, LA, LD, LL, NP, PA, PH, SA, SY
If your delivery address falls within one of these postcode areas, we’ll be in touch before processing your order to confirm any additional delivery costs.
Please note: We do not currently offer delivery outside the UK mainland.
Standard (Nationwide) Delivery
| Screws & Fixings and Adhesives & Sealants | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £50 | £5 ex. VAT |
| Over £50 ex. VAT | FREE |
| Insulation, Plasterboard and Drylining Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £350 | £35 ex. VAT |
| Over £350 ex. VAT | FREE |
| Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £300 | £10 ex. VAT |
| Over £300 ex. VAT | FREE |
Express Delivery
| Express Delivery - Insulation and Plasterboard & Drylining | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £400 | £50 ex. VAT |
| Over £400 ex. VAT | £35 ex. VAT |
| Express Delivery - Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £300 | £50 ex. VAT |
| Over £300 ex. VAT | £35 ex. VAT |
Returns
We offer a 30 day returns policy on any faulty products.
Key Features
- {{engineering}} Compatible with a standard Phillips bit for easy installation
- {{fitness_center}} Coarse thread provides superior holding strength
- {{call_split}} Sharp point reduces wood splitting
- {{straighten}} Allows for a flush finish
Technical Specification
| Product: | Coarse Thread |
|---|---|
| Material Type: | Carbon Steel |
| Length: | 100mm |
| Box Quantity: | 500 |
| Sales Unit: | Box |
| Colour: | Black |
| Collated: | No |
| Diameter: | 4.8mm |
| Head Type: | Bugle |
| Indoor/Outdoor Usage: | Indoor |
| Drive Type: | Phillips |
| Thread Type: | Coarse |
| Thread Length: | Fully Threaded |
Why Black Drywall Screws?
- Corrosion Resistance: Black drywall screws feature a phosphate coating that helps prevent rust and corrosion.
- Flush Finish: Bugle head design allows for a flush finish, reducing the risk of tearing the paper on drywall and ensuring a clean, professional look.
- Sharp Point: Enables secure and efficient penetration into surfaces, making the installation process quicker and more efficient.
- Cost-Effective: Available in large quantities - budget-friendly option for high-volume jobs.
Why 100mm?
- Used to fix thicker/multiple layers of drywall to framing and studs.
- Offers superior holding power compared to shorter screws.
Why Coarse Thread?
- Effectively fixes drywall (plasterboard) to timber studs.
- Widely spaced grooves grip the gypsum when inserted, preventing the risk of stripping, which is when the threads of the screw or the material become damaged, causing the screw to lose grip and making it difficult to drive or remove.
- Larger thread pitch requires fewer rotations to drive the screw fully into the material, speeding up the installation process, especially when using a power tool.
- Efficient anchorage even in the presence of natural wood irregularities like knots or grain patterns.
- Sharp point aids in quick penetration, reducing the initial driving torque needed to insert into the substrate.
(W-Type)
The term "W-type" when referring to coarse-thread screws is typically used in the context of the Unified Thread Standard (UTS) or Unified Inch Thread (UN) system. The "W" in this case stands for "Wider" or "Wide", referring to the wider, more aggressive thread pitch found in coarse-thread screws compared to fine-thread screws.
Why Uncollated?
- Individual screws that are not pre-assembled in strips or coils.
- Allows more control over the exact placement of each screw and the force with which they are driven.
- Ideal for small repairs or installations, such as hanging shelves, installing small fixtures, or attaching drywall to studs.
Applications
- Fixing Plasterboard to Wood Framing: Perfect for attaching drywall to wooden studs or joists.
- Wall Installation: Suitable for creating smooth, flat walls.
- Ceiling Applications: Can be used in ceilings to secure drywall.
Benefits
- Bugle Head: The bugle head design compresses both the gypsum and paper lining as the screws are driven in.
- High Quantity: Supplied in a box of 500, they are convenient for large projects, reducing the need for frequent reordering.
- Compatibility: Works well with a standard Phillips bit for easy installation.
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