Drywall Black Phosphate Screws 3.5 X 38mm
In stock
Delivery Information
| Delivery Time Frame | Delivery Information |
| Next Working Day By 1PM | When an order is placed by 3pm for next working day on certain items |
| Standard Delivery | Usually delivered in 2 to 4 working days |
| Delivery Charges | |
| UK Mainland | Prices start at £3.95 for very small items, £6.50 for small, £9.50 for medium and £20 for large/long items |
| Scottish Highlands & Islands, Northern Ireland & Ireland | Prices from £30, please see our delivery page for more info. |
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Description
Professional Drywall Installation Solutions
Securing plasterboard effectively is the cornerstone of any high quality interior fit-out. Whether you are refurbishing a residential space or managing a commercial partition project, the choice of fixing determines the structural integrity and the finish of your walls. Using the right screw prevents common issues like heads popping through the paper surface, board movement, or insufficient pull-out resistance which can lead to cracks later on. Our 3.5 x 38mm black phosphate drywall screws provide the reliability tradespeople require to achieve a flawless, lasting finish every time.
These screws are purpose-built to handle the specific demands of modern drylining. The black phosphate coating serves a dual purpose by offering essential resistance against rust and corrosion while ensuring the screw sits perfectly within the plasterboard without staining the surface. By choosing a high quality fixing, you reduce the risk of stripping the recess during installation, allowing you to move through your project quickly and efficiently. This product represents our commitment to providing durable components that keep your construction projects running smoothly from start to finish.
PRECISION FIT
The precision engineered bugle head is designed to sink just below the surface of the plasterboard. This eliminates the risk of damage to the outer paper layer and provides a clean, flat surface that is ready for tape and jointing or skimming without the need for excessive filler.
RAPID ASSEMBLY
Featuring a specialised sharp point that penetrates wood, MDF, and light gauge sheet metal with minimal effort. This rapid start design saves time on site, reducing operator fatigue and ensuring you can complete large areas of drylining with complete ease and professional precision.
SECURE HOLD
The advanced thread configuration ensures a deep bite into your chosen substrate. Whether you are fixing into timber studwork or metal track systems, these screws provide exceptional pull-out resistance, meaning your walls remain rigid, secure, and free from vibrations for many years to come.
Manufacturing Integrity
At Doorfit, we understand that reliability is the most important factor on a busy construction site. These black phosphate drywall screws undergo a rigorous manufacturing process to ensure consistent head geometry and thread depth. When you are installing hundreds of screws in a day, you need the assurance that every single one will perform exactly as expected. We maintain strict quality controls to ensure that the Phillips No.2 recess remains perfectly formed, allowing your driver bit to sit securely without cam-out.
The black phosphate plating is applied through a precise chemical process that creates a protective barrier, preventing oxidation while maintaining the strength of the steel core. This is not just a standard screw. It is a vital component that bridges the gap between your heavy duty frame and the delicate surface of the plasterboard. Every batch is checked for dimensional accuracy to ensure your install process is smooth, professional, and entirely free from unnecessary frustration.
Designed for industry standard driver bits to ensure maximum torque transfer and zero slippage.
The perfect length for standard board thicknesses, offering maximum grip without punching through the rear of your studs.
Proven Application Benchmarks
These screws are the industry standard for a reason. They excel in high volume environments where speed and accuracy are paramount. By using a bugle head design, the pressure is distributed evenly across a wider area of the plasterboard, which significantly reduces the risk of the screw tearing through the gypsum core. This is essential for achieving a professional finish that is ready for decoration.
We recommend using these for mounting plasterboard onto timber studs or ceiling tracks up to 0.6mm in thickness. The thread depth is optimised to provide a high volume of surface area contact, which prevents the board from pulling away over time. Whether you are a homeowner tackling a DIY partition or a professional contractor completing a large scale development, these fixings offer the performance you need to get the job done right the first time.
Detailed Specifications
| Feature | Detail | Practical Use |
|---|---|---|
| Length | 38mm | Ideal for single layer board |
| Diameter | 3.5mm | Standard gauge for plasterboard |
| Recess | Phillips No.2 | Universal drive compatibility |
| Finish | Black Phosphate | Corrosion and rust resistant |
| Point Type | 25 degree Sharp Point | Fast penetration into timber |
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Specification
| Finish | Black |
|---|

