Screw SPAX BLAX 25 mm Steel 200 pcs

SPAX BLAX screw, 25 mm length, steel, 200 pieces — a full-thread countersunk wood screw with a flat head and T-STAR plus hexalobular internal drive. Designed for secure, high-efficiency fastening in wood, the screw features a 4CUT arrow-shaped tip that reduces splitting and often eliminates the need for pre-drilling. The flat countersunk head sits flush with the surface and has a polygonal underside that mills into the wood for reliable seating. Made in Germany and suitable for a wide range of interior and structural wood applications.

Advantages

The T-STAR plus drive provides a large contact surface and optimal bit positioning for maximum, precise force transmission from screwdriver to screw, reducing bit slip and enabling faster serial fastening. Full thread along most of the screw length increases tensile and compressive load capacity for stronger wood connections. The 4CUT tip displaces wood fibres to reduce core expansion and splitting, lowering required cordless screwdriver torque and often removing the need for pre-drilling. The flat countersunk head with polygonal underside allows flush seating without pre-drilling in many cases.

Suitable for

• Interior woodworking and furniture assembly
• Fixing window and door frames with plastic or aluminium profiles
• Structural wood connections requiring high tensile/compressive strength
• Fastening near edges where splitting risk is higher

Key specifications

• Product name: SPAX BLAX screw
• Length: 25 mm
• Thread length: 21 mm
• Head diameter: 6 mm
• Drive type: T-STAR plus (hexalobular internal)
• Tip: 4CUT arrow-shaped
• Head style: flat countersunk with polygonal underside
• Material: Steel
• Finish/color: Black
• Quantity: 200 pcs
• Suitable for: Wood
• Made in: Germany

How to use

Select a T-STAR plus bit that matches the hexalobular drive. Position the screw and drive it with a cordless or corded screwdriver at appropriate torque for the wood species and thickness. For many woods and applications the 4CUT tip and polygonal underside allow insertion and countersinking without pre-drilling; however, for very hard or brittle woods and edge work check torque and, if necessary, pre-drill a pilot hole to avoid overstressing the material. Ensure the head sits flush with the surface when fully driven.

Usage recommendations

Use appropriate protective equipment and set the screwdriver to a controlled torque. For critical or structural assemblies follow applicable building regulations and use screws of the correct length and diameter for the load.