Acorn Nuts, also known as cap nuts, feature a hexagonal shape with a domed top that covers exposed bolt threads for safety and a clean finish. While they are commonly paired with hex bolts, their use extends to a wide range of fasteners. The six-sided hex design allows for easy wrench application, ensuring secure tightening and optimal torque transmission.

These nuts are available in both metric and imperial sizes, and support various thread profiles such as UNC (Unified National Coarse), UNF (Unified National Fine), UN (Unified National), and ISO metric threads. Acorn nuts are manufactured from a wide range of materials and comply with relevant ASTM standards.

Explore this section for more details on the manufacturing techniques, design variations, available sizes, thread specifications, dimension charts, torque values, and material grades related to acorn nuts.