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Grade 5 Finished Hex Jam Nut, Zinc CR+3 (Inch)
Our Grade 5 Finished Hex Jam Nuts with Zinc CR+3 plating are high‑strength fastening components designed for locking, adjustment, and space‑restricted applications. Manufactured from medium‑carbon steel and heat‑treated to SAE Grade 5, these jam nuts provide dependable tensile strength and durability for demanding mechanical and industrial assemblies.
The jam nut design features a thinner profile than standard hex nuts, allowing use in tight clearances or in double‑nut locking configurations to help resist loosening from vibration or movement. Finished with Zinc CR+3 (trivalent chromium) plating, these nuts offer enhanced corrosion resistance compared to plain steel while meeting modern environmental and regulatory standards. The finished hex shape ensures consistent wrench engagement and reliable installation.
Engineered for versatility and performance, Grade 5 Zinc CR+3 Finished Hex Jam Nuts are commonly used in machinery, automotive assemblies, agricultural equipment, maintenance operations, and general industrial applications. The zinc coating helps protect against rust in indoor and light‑to‑moderate outdoor environments, while the Grade 5 strength rating supports reliable load‑bearing and locking performance. Available in a wide range of inch sizes, these jam nuts provide a practical fastening solution for OEM manufacturing, repair, and maintenance where strength, corrosion resistance, and reduced nut height are required.
