SPAX Flat countersunk head screw Cross recess Z Metal Zinc Wood Length 40 mm Thread diameter 4.5 mm 200 pieces

The SPAX flat countersunk head screw with a Cross recess Z drive is engineered for reliable and efficient fastening in various woodworking projects. Manufactured from durable metal with a protective blue zinc-plated A2J finish, these screws offer dependable performance for indoor tasks. Featuring a length of 40 mm and a thread diameter of 4.5 mm, this 200-piece pack provides an ample supply for construction, repair, and general assembly work.

Advantages

These screws incorporate specialized design elements to streamline the installation process. The 4CUT point design allows for insertion without pre-drilling in many wood types, as the square end displaces wood fibers to effectively reduce splitting, even when working close to material edges. Ground serrations running up to the point ensure quick and secure fastening, while the reduced driving-in torque helps preserve battery life when using power tools. Additionally, the MULTI head enables flush countersinking by milling smoothly into wood and stopping securely on metal surfaces.

Suitable for

• General woodworking and carpentry tasks
• Indoor furniture assembly and repair
• Fastening wood elements near edges
• Universal fastening projects requiring reliable grip

These screws may not be suitable for outdoor environments subject to moisture without appropriate weathering protection, as the zinc coating is primarily optimized for indoor applications. They are also not designed for use in masonry, concrete, or heavy metal structures without proper anchoring.

Key specifications

• Length: 40 mm
• Thread diameter: 4.5 mm
• Thread length: 3.4 cm
• Drive type: Cross recess Z
• Material: Metal, zinc-coated
• Head type: Flat countersunk
• Quantity per pack: 200 pieces

To use these screws effectively, align the components to be joined and drive the fastener directly into the wooden material using a compatible Cross recess Z screwdriver or bit. The specialized point and serrated threads will engage the material smoothly, allowing the flat head to countersink flush with the surface.

What to consider before purchase

• Verify that the 40 mm length and 4.5 mm diameter match the dimensions required for your specific materials
• Confirm that the intended application is indoors, where the zinc-plated finish provides appropriate corrosion resistance
• Check that you have a compatible Cross recess Z tool for installation

Usage recommendations: For optimal results, ensure the correct bit size is used with the Cross recess Z drive to prevent cam-out and maintain steady pressure while driving the screws into the wood.