A triple square socket, also known as XZN, is a specialized 12-point fastener drive designed for high-torque applications. Its unique shape resembles three overlapping squares, offering greater surface contact than a standard hex. These sockets are primarily used in automotive repairs, especially on European vehicles like VW, Audi, and BMW, and in various industrial settings requiring robust fastening.
Triple square bits are primarily used in European automobiles, particularly on German car brands like BMW, Mercedes, Audi, and Volkswagen. They commonly secure brake calipers, engine components, drivetrain parts, and door mechanisms. Their high-strength design makes them ideal for fasteners that require significant torque and resistance to vibrational loosening, ensuring components remain securely fixed in...
No, a triple square is not the same as a Torx bit. While both are multi-point fasteners, Torx bits typically feature a six-point, star-shaped pattern. A triple square, or XZN, uses a twelve-point pattern, resembling three superimposed squares. This distinct geometry means they are not interchangeable, and using the wrong bit will likely damage the...
Triple square fasteners are preferred in certain vehicles due to their exceptional ability to transfer high torque without cam-out or stripping. Their twelve-point design offers greater surface contact with the fastener head compared to hex or Torx, distributing the load more effectively. This makes them highly reliable for critical components exposed to significant stress and...
Triple square bits are typically manufactured from high-grade alloy steels, such as chrome vanadium (Cr-V) or S2 steel. S2 steel is particularly common for impact-rated bits due to its superior hardness and resistance to wear and impact. These materials ensure the bits can withstand the immense torque and repetitive use often encountered in automotive repair,...
Triple square bit sizes are typically identified by an "M" designation followed by a number, such as M6, M8, M10, or M12. This refers to the approximate major diameter of the fastener's thread, not the bit's head size in millimeters. The size is usually stamped directly on the bit shaft for easy identification. Always match...
No, you absolutely cannot use a regular hex key on a triple square bolt. Although they might appear somewhat similar, a hex key has only six points, while a triple square has twelve. Attempting to use a hex key will round off or strip the triple square fastener head almost immediately. Always use the correct...
Triple square bit sets are widely available from various retailers. You can find them at most automotive parts stores, well-stocked hardware stores, and numerous online retailers specializing in tools. Brands like GearWrench, Tekton, and Lisle offer comprehensive sets. Be sure to select a set that includes the common M sizes (e.g., M6-M18) to cover a...
Triple square tools are predominantly metric. Their sizes are designated using an "M" prefix followed by a number, such as M6, M8, M10, M12, and M14. This metric sizing convention aligns with their primary use in European-manufactured vehicles, which universally employ metric fasteners. There are no common imperial equivalents for triple square bits, making metric...
If you strip a triple square bolt head, immediate action is crucial. First, try using an impact driver or a specialized bolt extractor tool. Sometimes, a slightly smaller Torx bit can be hammered in for a temporary grip. If those fail, drilling out the bolt or welding a nut onto the stripped head are more...