Screw SPAX BLAX 50 mm Steel 200 pcs

SPAX BLAX 50 mm steel screws are full-thread, flat countersunk fasteners designed for wood applications. Manufactured in Germany, this 200-piece pack combines a black finish with a flat countersunk head, 4CUT tip and the T-STAR plus hexalobular internal drive to provide reliable, efficient fastening for interior and structural wood work. Each screw has an overall length of 50 mm, a thread length of 44 mm and a head diameter of 9.6 mm.

Advantages

The T-STAR plus drive increases contact area and ensures optimal bit seating in the screw head, enabling high-precision force transmission and reducing bit slip. The flat countersunk head with polygonal underside mills into the wood to sit flush without visible obstruction inside frames. Full threading across the screw length improves tensile and compressive load transfer for demanding wood connections. The 4CUT arrow-shaped tip displaces wood fibers, reduces core expansion and lowers the required cordless-driver torque, often eliminating the need for pre-drilling.

Suitable for

• Fastening window and door frames in wood, plastic and aluminium profiles (plug-free)
• Heavy-duty wood connections in structural and interior carpentry
• Decorative furniture and fittings with dark woods or black metal fittings
• General woodworking tasks where reduced splitting and rapid fastening are required

Key specifications

• Length: 50 mm
• Thread length: 44 mm
• Head diameter: 9.6 mm
• Drive type: T-STAR plus (hexalobular internal)
• Tip: 4CUT arrow-shaped point
• Head shape: Flat countersunk with polygonal underside
• Material: Steel
• Finish: Black
• Quantity: 200 pcs
• Suitable materials: Wood
• Manufacturer origin: Germany

How to use

Select a compatible T-STAR plus bit and secure it in the cordless or corded screwdriver. Position the 4CUT tip on the mark and start at low speed to allow the polygonal underside to mill into the wood when countersinking. Increase speed and apply steady pressure to drive the screw until the flat countersunk head sits flush with the surface. For hard or dense wood and close-to-edge applications consider controlled speed and incremental driving to avoid surface damage.

Usage recommendations

Use without pre-drilling where stated by the wood type; for very hard or engineered timber and near edges, pre-drilling or pilot holes may still be advisable. Match the T-STAR plus bit size to avoid cam-out and ensure optimal force transmission.