

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 MP34278 is a nylon insert hex lock nut designed to resist loosening under vibration and dynamic loads. It features a 3/4-10 thread size with a nylon insert that grips the mating fastener threads and maintains clamping force without additional locking hardware. Constructed from Grade 2 steel with a zinc finish for basic corrosion resistance, this nut measures 7/8 inches high with 1-1/16 inches across the flats. Right-hand thread orientation follows standard fastener convention. It is used by maintenance technicians, plumbers, pipefitters, electricians, and general tradespeople wherever a reliable threaded fastener is required.
This nylon insert lock nut is suited for mechanical assemblies, structural connections, pipe support systems, electrical enclosure mounting, and equipment installation across residential and commercial trade work. The 3/4-10 coarse thread pattern is among the most common sizes in general-purpose fastening applications. Its zinc finish provides a serviceable level of corrosion protection for interior and mildly exposed installations. Sold individually per package with a minimum order quantity of 10 units.
Designed for use with standard 3/4-10 UNC threaded bolts, cap screws, and all-thread rod in general mechanical, structural, and trade installation applications.
Installation requires a standard 1-1/16 inch open-end wrench, box wrench, or socket. Nylon insert lock nuts are single-use by design and should not be reused once removed, as the nylon locking element loses effectiveness after the first installation. Ensure the mating fastener thread condition is clean and undamaged before assembly. Follow applicable mechanical and structural codes for the specific application.
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!