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Self-Drilling Countersunk Screws Zinc Plated For Metal, Wood & PVC

Self-Drilling Countersunk Screws Zinc Plated For Metal, Wood & PVC

Regular price £4.59 GBP
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Achieve fast, professional results on your next project with our Self-Drilling Countersunk Screws. Engineered with a hardened drill point, these versatile fasteners eliminate the need for pre-drilling, saving you valuable time and effort when fixing into metal, wood, or PVC. The countersunk head ensures a perfectly flush, clean finish every time, making them the ideal choice for window installation, cladding, general construction, and precision DIY tasks. As a true self-drilling screw, it creates its own hole and thread in one action, offering a significant advantage over standard self-tapping screws that often require a separate, pre-drilled pilot hole.

Key Features & Benefits

  • Time-Saving Self-Drilling Point: A hardened, fluted drill point powers through light-gauge steel and other materials, combining the actions of drilling, tapping, and fastening into one single, efficient operation. No pilot hole is required, dramatically speeding up installation.

  • Flawless Flush Finish: The precision-engineered countersunk head sits perfectly level with the material surface, providing a neat, professional, and snag-free finish ideal for aesthetic applications and for mounting hardware on top.

  • Durable & Corrosion Resistant: Protected by a bright zinc plating (BZP), these screws are shielded from rust and corrosion, ensuring a long-lasting and reliable fixing in indoor or sheltered outdoor applications.

  • High-Strength Grip: The sharp, coarse threads are designed to bite securely into sheet metal and other materials, providing excellent holding power and high pull-out resistance for a strong, permanent fixture.

  • Versatile Application: An indispensable fastener for a wide range of tasks. Ideal for fastening metal sheets, window and door frames, timber to light section steel, HVAC components, and general fabrication projects.

Common Applications

  • Metal Roofing & Cladding Panels

  • Installation of PVC and Aluminium Window & Door Frames

  • HVAC Ducting and Component Assembly

  • General Metal Fabrication and Assembly

  • Securing Timber Battens to Light-Gauge Steel Studs

  • Electrical Enclosures and Trunking

  • DIY Garage, Workshop, and Greenhouse Construction

Technical Specification Table

Specification

Detail

Head Type

Countersunk

Drive Type

Phillips (PH2)

Material

C1022 Hardened Carbon Steel

Finish / Coating

Bright Zinc Plated (BZP)

Diameter (Thread)

4.2 mm

Thread Type

Self-Tapping / Coarse

Drill Point

No. 2 Hardened Drill Point

Drilling Capacity (Steel)

1.2 mm - 3.5 mm

 

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