5/8"-11 All Metal Grade C Locknut Clear Cr3 Zinc Wax Plating

All Metal Hex Locknuts Grade C Medium Carbon Steel with Clear Cr3 Zinc & Wax Plating 

All Metal Hex Locknuts made from Grade C medium carbon steel and finished with Clear Cr3 Zinc and Wax plating are high-strength, vibration-resistant fasteners used in a wide range of industrial and structural applications. Unlike nylon insert locknuts, these locknuts achieve prevailing torque through mechanical deformation, offering superior temperature resistance and reusability.

Specifications:

• Material: Grade C medium carbon steel, heat-treated for enhanced tensile strength and durability

• Type: All-metal prevailing torque hex locknut – typically distorted at the top threads (top-lock style) or with a conical top (center-lock style)

• Plating: Clear Zinc Cr3 + Wax coating provides enhanced corrosion resistance and smooth thread engagement; the wax improves torque tension consistency

• Size Range: Commonly available from 1/4"-20 up to 1"-8 UNC/UNF thread sizes

• Temperature Rating: Suitable for high-heat environments, up to 1000°F, unlike nylon-based locknuts

• Standards: Meets or exceeds ASTM A563 Grade C, SAE J995, and IFI 100/107 mechanical requirements

Applications:

• Heavy-duty construction – ideal for steel frameworks, bridges, and infrastructure requiring long-term integrity

• Automotive and transportation – used in suspension systems, drivetrain components, and engine assemblies subject to vibration

• Industrial equipment – secures fasteners in machinery, gearboxes, and rotating equipment

• Energy and utilities – reliable performance in high-temperature environments like power plants and refineries

• Military and aerospace (non-flight) – preferred for robust mechanical locking without polymer inserts

All Metal Hex Locknuts Grade C with Clear Cr3 Zinc and Wax plating are engineered for environments where strength, vibration resistance, and corrosion protection are crucial. Their all-metal construction makes them a preferred solution for applications that demand consistent torque and durability under stress.