Countersunk Head SPAX Universal Screws WIROX 3 mm x 25 mm, 1000 pcs

Pack of 1000 SPAX universal countersunk head screws with WIROX finish, size 3 mm x 25 mm. These screws are designed for general-purpose fastening in wood, chipboard and other common construction and DIY materials where a flush countersunk head is required. The WIROX coating provides improved corrosion resistance compared with untreated steel, while the SPAX thread geometry and tip reduce the need for pilot holes and improve driving accuracy and holding power.

Advantages

The SPAX universal countersunk screws combine a standardized 3 mm diameter and 25 mm length with a countersunk head that sits flush with the surface once driven. The WIROX surface treatment enhances corrosion resistance for indoor and semi-exposed applications without changing the screw dimensions. SPAX thread profile and optimized tip reduce splitting in wood and allow easier insertion, delivering consistent performance across batches in this 1000-piece pack suitable for tradespeople and larger projects.

Suitable for

• Woodworking and joinery tasks requiring flush-mounted fasteners
• Fixing chipboard, MDF and similar board materials
• General repair and assembly work in interior and sheltered exterior environments
• Tradespeople and contractors needing bulk fasteners for repetitive tasks

Key specifications

• Quantity: 1000 pieces per pack
• Head type: countersunk (flat) head for flush finish
• Diameter: 3 mm
• Length: 25 mm
• Finish: WIROX corrosion-resistant coating
• Material: steel (zinc-alloy surface treatment)
• Thread: universal SPAX profile for reduced splitting and good holding in wood-based materials

How to use

Choose an appropriate drill bit or driver bit that matches the screw head and desired countersink depth. For most wood and board applications, these SPAX screws can be driven with a powered screwdriver or drill using a suitable PH or TX drive bit; ensure the driver is set to an appropriate torque to avoid overdriving. Where thin or fragile materials are used, pre-drilling a pilot hole or a shallow countersink may help prevent splitting and ensure a neat flush finish. Clean the connection surfaces before fastening to maintain contact and alignment.

Usage recommendations

Store the screws in a dry environment to preserve the WIROX coating. For continuous outdoor exposure or highly corrosive environments, consider selecting stainless steel or specially coated fasteners designed for prolonged external use. When fastening structural or load-bearing components, follow relevant building regulations and use screws of appropriate dimensions and strength.