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The VALUE COLLECTION 39613 is a 3/8-24 UNF hex nut manufactured from Grade 8 steel with a zinc yellow dichromate finish. Grade 8 steel provides high tensile strength suited for demanding fastener applications where standard hardware-grade nuts are not adequate. The zinc yellow dichromate coating delivers corrosion resistance and is a common identifier for high-strength fasteners in mechanical and structural assemblies. This nut features a right-hand thread and measures 9/16 inches across flats with a height of approximately 21/64 inches. It is installed by mechanics, millwrights, and general tradespeople working on equipment requiring reliable high-strength fastening.
This hex nut is used in mechanical, automotive, industrial, and general equipment assembly applications where a 3/8-24 fine-thread fastener is specified. Fine-thread UNF fasteners provide greater thread engagement per inch compared to coarse-thread variants, making them appropriate for applications with vibration or where precise torque adjustment is needed. The Grade 8 rating and yellow dichromate finish make this nut a standard choice for high-load bolted connections in both shop and field environments.
Designed for use with 3/8-24 UNF Grade 8 bolts and threaded fasteners in mechanical, automotive, and industrial assemblies requiring high-strength fine-thread hardware.
Installation is performed by mechanics, millwrights, or tradespeople using standard 9/16-inch hex sockets or wrenches. Ensure the mating bolt is also rated Grade 8 or equivalent to maintain the integrity of the fastened joint. De-energize and lock out any equipment before servicing fastened assemblies per applicable safety procedures. Do not mix thread standards or grades within a single fastened joint.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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