18k Gold Screw Lock Clasp

These are 18k gold screw lock clasps or connectors, often used for jewelry. They have an oval or elongated shape with a screw mechanism to open and close securely. One clasp is shown open, revealing the threaded end and the receiving barrel. The other clasp is closed, with the screw barrel fully inserted and a visible hallmark "750," indicating 18k gold purity. These clasps are crafted from polished yellow gold, highlighting the warm color of the metal. They are functional components that can also add a design element to necklaces, bracelets, or used as unique keychain holders.