

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 5891-Z is a 1/4-20 UNC hex nut manufactured from Grade 316 stainless steel with a bright uncoated finish. Designed for right-hand threaded fastening applications, this nut measures 7/16 inches across the flats and 7/32 inches in height. Grade 316 stainless steel provides strong resistance to corrosion and chloride exposure, making it well suited for wet, marine, and chemical-adjacent environments. Plumbers, pipefitters, pool service technicians, and HVAC installers commonly reach for 316 SS hardware when working in humid or corrosive conditions where carbon steel or 304 stainless would degrade prematurely.
This hex nut is appropriate for general mechanical assembly, pipe flange connections, equipment mounting, and structural fastening where corrosion resistance is a priority. Typical install scenarios include pool equipment enclosures, coastal HVAC systems, plumbing utility rooms, and any application where prolonged moisture or chemical exposure is expected. The standard UNC thread form ensures broad compatibility with inch-system fasteners used across trade applications.
Designed for use with any 1/4-20 UNC inch-series threaded bolt, stud, or rod requiring a standard hex nut in Grade 316 stainless steel.
Installation is performed by hand with a standard 7/16-inch open-end, box-end, or socket wrench. Always ensure the mating bolt or stud is also stainless steel or a compatible metal to avoid galvanic corrosion. Disengage power or shut off fluid systems before fastening hardware on live mechanical assemblies. Follow applicable mechanical and plumbing codes for fastener torque requirements specific to the joint type and load.
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!