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Securfix Drywall Screws - Black - 3.5mm x 45mm

Securfix Drywall Screws - Black - 3.5mm x 45mm

These Securfix drywall screws feature a bugle head and a coarse thread design for secure fastening...

Best current price£6.75from B&Q

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B&Q - Securfix Drywall Screws (Pack Of 200) Black (3.5mm X 25mm)
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OnBuy.com(3.5Mm X 25Mm, Black) Securfix Drywall Screws (Pack Of 200) 5063884566838
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DebenhamsSecurfix Unisex Black Drywall Screws (Pack Of 200) 3.5Mm X 25Mm In
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Product Information

Full details

The Securfix Drywall Screws (3.5mm x 45mm) are an essential fastening solution for contractors and DIY enthusiasts looking to achieve secure, flush-mounted connections in drylining projects. Featuring a specialized bugle head and coarse thread design, these screws offer excellent pull-out resistance and minimal surface damage, though users should ensure they are using the correct length for their specific wallboard thickness to avoid piercing studs.

All features

ColourBlack
Model Part Number5063884566845
BrandSecurfix

Extended Product Information

FAQs

Can I use these for metal studs?

No, these are coarse-thread screws designed specifically for timber studs. You should use fine-thread drywall screws for metal framing.

What is the best way to hide the screw heads?

Cover the screw heads with a small amount of joint compound, let it dry, sand it smooth, and prime before painting.

Are these screws suitable for outdoor use?

No, the black phosphate coating is intended for dry, interior conditions. Outdoor use will lead to rust.

Do I need to pre-drill holes?

Typically, no. The sharp point is designed to pierce drywall and bite into timber immediately, unless the timber is extremely hard or thin.

How many screws are in the pack?

Each pack contains 200 individual screws.

Troubleshooting

Screw head tearing through plasterboard surface

Adjust the torque setting on your drill or use a drywall dimpler bit to prevent over-driving.

Screw failing to grip the timber stud

Ensure you are using the correct length for the wallboard thickness; verify that the stud is located accurately behind the board.

Screw head stripping

Ensure the screwdriver bit is fully seated and is the correct size (PH2); maintain downward pressure while driving.

Pros and Cons

Pros

  • Excellent holding power in timber
  • Flush finish thanks to the bugle head
  • Corrosion-resistant phosphate coating
  • Standard drive size fits most tools

Cons

  • Not suitable for metal studding
  • Not for exterior or high-moisture environments
  • Coarse thread can split thin wood if not pre-drilled

Setup, Compatibility & Care

For the best results, use a standard PH2 screwdriver bit. To install: 1. Position the plasterboard securely against the timber stud. 2. Drive the screw until the head is just below the surface of the paper. 3. Avoid overtightening, as breaking the paper skin reduces holding strength. These screws are designed for interior use only; avoid areas with direct water exposure or high humidity as the phosphate finish is not galvanized. Store in a dry place to prevent premature oxidation.

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