Kuusiokolo

Kuusiokolo is a Finnish term that literally translates to "hexagon hole" or "hexagonal socket." It refers to a type of recess or indentation found in fasteners, most commonly in screws and bolts. This recess is shaped like a hexagon and is designed to accept a hexagonal key, also known as an Allen key or hex wrench.

The kuusiokolo design allows for a strong grip and efficient torque transfer between the tool and the fastener. This makes it a popular choice for applications where high tightening forces are required or where space is limited. The hexagonal shape ensures that the tool engages with six points of contact, distributing stress evenly and reducing the likelihood of the tool slipping.

Kuusiokolo fasteners are widely used across various industries, including furniture assembly, automotive manufacturing, electronics, and bicycle construction. They are often preferred over slotted or Phillips head screws due to their superior torque capabilities and resistance to cam-out, where the tool might slip out of the recess. The size of the kuusiokolo is typically measured by the diameter across the flats of the hexagon.