

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The VALUE COLLECTION -34276-1 is a 9/16-12 UNC hex lock nut with a nylon insert locking mechanism, manufactured from Grade 2 steel with a zinc-plated finish. The nylon insert compresses against the mating bolt threads to resist loosening under vibration and torque, providing reliable holding force without the need for thread-locking compounds. At 0.625 inches in height and 0.875 inches across flats, this nut follows standard UNC inch-measurement dimensions. It is suitable for general-purpose mechanical assemblies, structural connections, and maintenance applications where vibration resistance is required. Installation by mechanics, maintenance technicians, or trade professionals is common.
This hex lock nut is used in a wide range of general-purpose fastening applications across HVAC, plumbing, electrical, and structural assemblies. It is suited for residential and light commercial settings where a standard 9/16-12 UNC threaded fastener connection needs added resistance to vibration-induced loosening. The right-hand thread direction follows standard fastener convention. It is sold individually but subject to a minimum order quantity of 50 pieces, making it appropriate for stocking in service vehicles, supply rooms, or job-site fastener bins.
Designed as a standard UNC inch-series hex lock nut for use with 9/16-12 threaded bolts, studs, and fastener assemblies in general mechanical and trade applications.
Install with a standard 7/8-inch wrench or socket driver. Tighten to the appropriate specification for the joint material and bolt grade being used. The nylon insert is a single-use locking feature — once the nut has been fully driven and removed, the locking effectiveness of the insert is reduced and replacement is recommended. Do not use where sustained temperatures will exceed the rated limits of nylon insert materials.
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.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!