Screw SPAX Flat countersunk head Cross recess Z, metal zinc, 4 mm x 30 mm, thread length 25 mm, pack 200

SPAX flat countersunk head screw with Cross recess Z drive, zinc-plated metal construction, diameter 4 mm and overall length 30 mm with a thread length of 25 mm. Supplied in a pack of 200, this screw is designed for fastening in wood and similar materials where a flush, countersunk finish is required. The combination of a flat countersunk head and a Cross recess Z drive provides controlled driving behaviour and a neat, concealed fastening once installed.

Advantages

The screw features a 4CUT tip that enables insertion without pre-drilling in many wood applications, reducing splitting and saving time. Ground serrations and a MULTI Head design ensure quick, secure fastening: the head mills into wood and seats firmly against metal when needed. Blue zinc plating offers basic corrosion protection for indoor and multifunctional uses. The Cross recess Z drive reduces driving torque and improves battery efficiency for cordless screwdrivers.

Suitable for

• Furniture assembly and fittings
• Carpentry and joinery work in soft and hardwood
• General wood construction and interior fittings
• Applications requiring a flush countersunk finish

Key specifications

• Diameter: 4 mm
• Overall length: 30 mm
• Thread length: 25 mm
• Head type: flat countersunk (MULTI Head)
• Drive type: Cross recess Z (Pozidriv-style)
• Tip: 4CUT self-starting tip
• Surface finish: blue zinc plating
• Material: metal
• Pack quantity: 200 pieces

How to use

Select an appropriate Cross recess Z driver bit or Pozidriv bit that matches the drive profile. For many wood applications the 4CUT tip allows direct insertion without pre-drilling; however, test on scrap material if unsure or if working near edges or with hardwoods. Position the screw in the countersunk hole or pilot location, apply steady pressure and drive until the MULTI Head is flush with the surface. Use controlled torque settings on power drivers to avoid overdriving or damaging the material.

Usage recommendations

For optimal results, use with a compatible Pozidriv/Cross recess Z bit and adjust driver torque for the material density. When working close to edges or with very hard timber, consider a small pilot hole to further reduce splitting. Store in a dry environment to maintain the zinc plating finish.