Socket screw bit Wera 867/4 Z TX20 50 mm, Torx (TX20) 50 mm length

Wera 867/4 Z TX20 50 mm is a Torx socket screw bit designed for precise engagement with TX20 fasteners. The bit has a 50 mm working length to reach recessed heads and confined areas, and it is made to be used with compatible bit holders, ratchets or quick-change chucks. The geometry of the Torx tip ensures reliable torque transfer and reduces cam-out during assembly, maintenance and repair work where Torx screws are specified.

Advantages

The bit provides accurate fit to TX20 fasteners and consistent torque transmission for repeatable results. Its 50 mm length allows access to screws in deeper or narrow positions while keeping the driving tool at a safe distance. Manufactured to meet Wera quality standards, the bit is machined for precise tip profile and durable performance in workshop and field applications.

Suitable for

• Assembly of electronic enclosures and mechanical components with Torx TX20 screws
• Maintenance and repair of appliances, automotive trim and equipment that use TX20 fasteners
• Accessing recessed screws in cabinets, machinery and confined installations
• Use with bit holders, ratchets, impact drivers (if specified as compatible) and quick-change chucks

Key specifications

• Tip type: Torx TX20
• Working length: 50 mm
• Design: socket screw bit compatible with standard bit holders
• Material and finish: hardened steel with precision-machined tip
• Connection: hex/socket end for secure mounting in bit holders and drivers

How to use

Insert the Wera 867/4 Z TX20 bit into a compatible bit holder, quick-change chuck or socket adapter until it locks securely. Align the Torx tip with the TX20 screw head and apply steady axial pressure while turning the driving tool to engage the fastener. For removal, reverse the rotation and maintain axial pressure to prevent stripping the screw head. Inspect the tip and the fastener for wear before and after use to ensure proper engagement.

Usage recommendations

Use the bit with tools and holders rated for the required torque and application. Avoid excessive side loads and impacts unless the bit and driver are specified for impact use. Replace the bit when the tip shows rounding or wear to maintain secure fit and prevent damage to TX20 screw heads.