

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 R63084249 is a 5/16-18 UNC hex nut machined from Grade 316 stainless steel with a bright, uncoated finish. It features a right-hand thread and measures 0.5 inches across the flats with a height of 17/64 inches. Grade 316 stainless offers superior corrosion resistance compared to Grade 304, thanks to its molybdenum content, making it a reliable choice for fastening applications where exposure to moisture, chemicals, or salt is a concern. This nut is installed by mechanics, pipefitters, millwrights, and maintenance technicians working across a range of industrial and commercial environments.
This hex nut is suited for use in marine, chemical processing, food service, and outdoor structural applications where corrosion resistance is a primary requirement. The 5/16-18 UNC thread size fits a wide range of standard bolts and threaded rod in that size class. It is well-suited for both new assembly work and maintenance or repair tasks where a durable, corrosion-resistant fastener is needed.
Designed for use with 5/16-18 UNC threaded bolts, studs, and threaded rod in standard unified coarse thread applications.
Installation is performed by hand-threading the nut onto a matching 5/16-18 UNC bolt or stud, then tightening with a standard 1/2-inch wrench or socket. Always verify thread engagement is clean and free of debris before applying torque. When working in corrosive or wet environments, inspect mating fasteners for compatible material grade to avoid galvanic corrosion. Follow applicable mechanical or 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!