Value Collection 330470BR Hex Jam Nut 5/8-18 Unf Grade 2

Product Description

The VALUE COLLECTION 330470BR is a 5/8-18 UNF hex jam nut manufactured from Grade 2 steel with a zinc-plated finish. Jam nuts are thin hex nuts used primarily as locknuts — threaded against a standard nut or to a fixed position on a fastener assembly to prevent loosening from vibration or torque. This nut features right-hand threading and measures 15/16 inches across the flats with a height of 3/8 inches. The zinc plating provides a baseline level of corrosion resistance suited to general-purpose indoor and light-duty outdoor fastening applications. Mechanical contractors, millwrights, and maintenance technicians are the typical installers of this hardware.

This jam nut is suited for general mechanical assemblies, light structural connections, and maintenance applications requiring a fine-thread locknut in the 5/8-inch size range. The 5/8-18 UNF thread designation indicates a fine-thread pitch, which offers improved thread engagement and resistance to loosening compared to coarse-thread equivalents. Typical uses include shaft and rod end retention, jig and fixture building, and equipment maintenance across industrial, commercial, and light construction settings.

Key Features

• 5/8-18 UNF right-hand thread for fine-thread fastener assemblies
• Grade 2 steel construction for general-purpose mechanical use
• Zinc-plated finish for basic corrosion resistance
• 15/16 inches across flats — fits standard combination and open-end wrenches
• 3/8-inch height profile — designed for use as a jam or locknut
• Minimum order quantity of 25 units per order

Compatibility

Designed as a general-purpose jam nut for use in standard 5/8-18 UNF threaded fastener assemblies. Confirm thread pitch and diameter against the mating fastener before installation.

Installation Notes

Installation requires a 15/16-inch open-end or combination wrench. Thread the jam nut onto the fastener and torque it against the primary nut or mating component to lock the assembly. Inspect threads on both the nut and mating fastener for damage before assembly. Do not use this nut as a primary load-bearing nut in structural applications requiring Grade 5 or Grade 8 hardware.