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Heavy Hex Jam Nut, A563 Grade A, Zinc (Inch)
Heavy Hex Jam Nuts in A563 Grade A with a Zinc finish provide reliable locking performance and added corrosion protection for general-purpose construction, industrial, and equipment applications. The zinc coating offers enhanced resistance to rust compared to plain steel, making these nuts suitable for both indoor use and light outdoor environments.
For large scale orders, request a quote to receive our best pricing available for your custom order.
Designed with a heavy-hex profile and reduced jam-nut height, these nuts are commonly paired with heavy hex nuts to secure assemblies and prevent loosening under vibration. The zinc-plated finish delivers a clean appearance and consistent thread performance, making them an economical and dependable choice for structural, mechanical, and maintenance applications.
