Which type of bolt is strong but has a relatively small head size?

The twelve-point bolt is known for its unique design that features twelve points on its head, allowing for a more compact and smaller head size compared to other types of bolts such as hexagonal bolts. This design enables it to distribute the load evenly across its points of engagement, enhancing grip and torque capabilities. The smaller head size is advantageous in applications where space is limited and a robust connection is required without the bulk of a larger head.

In contrast, hexagonal bolts have a larger head that provides easier accessibility for wrenches but takes up more space. Carriage bolts, while designed for specific applications requiring a smooth, rounded head, are also larger and less suited for tight spaces. Socket head bolts, which feature an internal hex drive for better torque application, still possess larger heads compared to the twelve-point variations. Therefore, the twelve-point bolt stands out for its strength combined with a compact head size.