Prox 4.5 x 70 mm Wood Construction Screw with Countersunk Head TX20 Drive Partial Thread 250 Pieces

The Prox 4.5 x 70 mm wood construction screw with a countersunk head and TX20 drive is engineered for secure and stable assembly across various woodworking and construction projects. Designed with a partial thread, this fastener ensures tight clamping of materials while the specialized geometry reduces the risk of wood splitting during installation. The countersunk head allows the screw to sit flush with the wooden surface, creating a smooth finish without requiring extra countersinking steps. Equipped with a Torx TX20 drive, it enables efficient torque transmission and minimizes bit slippage for reliable driving performance. Complying with EN 14592 standards, this construction screw meets established requirements for structural timber applications. Each package contains 250 pieces, making it a practical choice for professional builders and DIY enthusiasts alike.

Advantages

The partial thread design pulls wooden components tightly together for a robust and stable connection. The countersunk head integrates smoothly into the material surface, ensuring a clean and even finish suitable for visible woodwork. The Torx TX20 drive facilitates high torque transfer and significantly reduces cam-out compared to traditional drive types. Built-in features help prevent wood cracking, allowing installation closer to board edges without compromising structural integrity. Compliance with EN 14592 guarantees adherence to recognized quality and safety standards for timber construction elements.

Suitable for

• General woodworking and carpentry projects
• Timber construction and framing assembly
• Attaching wooden boards and panels
• Securing structural elements in indoor and outdoor settings

When it may not be suitable

This wood construction screw is not recommended for heavy-duty metal-to-metal fastening or direct masonry applications without appropriate anchors. It may also be unsuitable for extremely dense hardwoods where pre-drilling is strictly mandatory unless pilot holes are properly prepared first.

Key specifications

• Dimensions: 4.5 mm diameter x 70 mm length
• Thread length: 40 mm with partial thread
• Drive type: Torx TX20
• Head type: Countersunk
• Standard compliance: EN 14592
• Quantity: 250 pieces per pack

How to use

Select a compatible TX20 screwdriver bit and insert it securely into your power tool or manual driver. Align the wood construction screw perpendicularly to the wooden surface where the joint is to be formed. Apply steady pressure and drive the screw at a moderate speed until the countersunk head rests completely flush with or slightly below the wood surface. Ensure that the partial thread engages correctly to pull the joined pieces tightly together without over-tightening, which could strip the wood fibers.

What to consider before purchase

• Verify that the 4.5 mm thickness and 70 mm length match your specific material thickness and load requirements
• Confirm that a TX20 driver bit is available in your toolkit
• Check if pre-drilling is required based on the specific wood species being used

Usage recommendations

Always store the screws in a dry environment to prevent corrosion before installation, and use appropriate personal protective equipment during all construction and assembly work.