Screw SPAX BLAX 30 mm Steel 200 pcs

SPAX BLAX screw, 30 mm, is a full-thread steel screw with a flat countersunk head and a T-STAR plus hexalobular internal drive. Manufactured in Germany, this 200-piece pack is designed for wood connections and general interior fastening where a black finish and flush countersinking are required. The screw combines a full thread for high tensile and compressive load transfer, a 4CUT arrow-shaped tip to reduce splitting and drilling effort, and a polygonal underside on the countersunk head that allows sinking without pre-drilling in many woods.

Advantages

The T-STAR plus drive provides a large contact surface and optimal bit positioning for maximum, precise force transmission from driver to screw, reducing bit slip and speeding up serial fastening. The full thread transfers greater tensile and compressive forces along the entire screw length, improving strength in heavy-duty wood connections. The 4CUT tip displaces wood fibres to reduce core expansion and minimise splitting while lowering the required cordless driver torque. The flat countersunk head sits flush and, thanks to its polygonal underside, can be countersunk without pre-drilling in many cases. The black finish suits dark woods and fittings.

Suitable for

• Fastening window and door frames with plastic or aluminium profiles (plug-free)
• Heavy-duty structural wood connections
• Interior furniture and decorative fittings with dark or antique woods
• Applications where a flush countersunk black head is desired

Key specifications

• Length: 30 mm
• Thread length: 25 mm
• Head diameter: 7 mm
• Drive: T-STAR plus (hexalobular internal)
• Tip: 4CUT arrow-shaped
• Head type: Flat countersunk with polygonal underside
• Material: Steel
• Finish: Black
• Quantity: 200 pcs
• Suitable material: Wood
• Made in: Germany

How to use

Select a T-STAR plus bit that matches the drive. For many wood types and most edge areas, pre-drilling is not required due to the 4CUT tip and the countersinking polygonal underside; however, test on a scrap piece first. Position the screw perpendicular to the workpiece and drive with a cordless or corded screwdriver at controlled speed and torque until the flat countersunk head sits flush with the surface. For dense hardwoods or critical connections, consider a pilot hole to control depth and prevent over-torquing.

Usage recommendations

Use appropriate torque settings on your driver to avoid stripping even with the high contact surface of T-STAR plus. When working close to edges or with very hard wood, verify performance on a sample and, if necessary, pre-drill. Store screws dry to avoid surface corrosion and maintain the black finish.