What part of handcuffs is referred to in nomenclature?

The nomenclature of handcuffs includes all the components essential to their function and design, which is why the correct answer encompasses all options provided.

The single strand and teeth are crucial in understanding how the mechanism securely grips the wearer’s wrist. The double strand, rivet, and keyhole mechanism refer to the overall structural integrity and functionality that allows the handcuffs to lock and release, which is vital for law enforcement use. Furthermore, the swivel and chain are important for allowing some movement while still keeping the cuffs secure, and they also contribute to the comfort and operational effectiveness of the handcuffs.

Each of these components plays a significant role in the design and functionality of handcuffs, making it important to recognize the terminology associated with all these elements collectively. Thus, understanding the complete nomenclature allows for a more comprehensive grasp of handcuff mechanics and usage.