Value Collection R57500128 Acorn Nut 7/16-20 Unf

Product Description

The VALUE COLLECTION R57500128 is a standard acorn nut manufactured from grade 18-8 stainless steel with a 7/16-20 UNF right-hand thread. Acorn nuts, also called cap nuts, feature a domed crown that covers the exposed end of a threaded fastener, protecting the thread and providing a finished appearance. This nut measures 5/8 inches across the flats and 23/32 inches in overall height. The uncoated stainless steel construction provides corrosion resistance suitable for wet, outdoor, or chemically active environments. Maintenance technicians, plumbers, electricians, and mechanical contractors use acorn nuts wherever a capped fastener end is required for safety, aesthetics, or thread protection.

This acorn nut is suited for light to medium-duty threaded fastener applications requiring a 7/16-20 UNF thread form. Typical install scenarios include equipment panels, enclosures, fluid system brackets, and structural assemblies where exposed thread ends must be covered. The 18-8 stainless steel grade is widely used in plumbing, HVAC mounting hardware, and pool or marine environments due to its resistance to oxidation and mild chemical exposure. The uncoated finish maintains the natural stainless appearance without added coating thickness that could affect fit.

Key Features

• Grade 18-8 stainless steel construction for corrosion resistance in wet or outdoor environments
• 7/16-20 UNF right-hand thread for compatibility with standard unified fine-thread fasteners
• Domed acorn crown protects exposed thread ends and provides a finished look
• 5/8 inch width across flats fits standard hex wrenches and sockets
• Uncoated finish preserves precise dimensional tolerances

Compatibility

Designed as a standard replacement or stock acorn nut for any application requiring a 7/16-20 UNF right-hand threaded cap nut in stainless steel.

Installation Notes

Installation requires a standard 5/8 inch hex wrench or socket. De-energize or depressurize any system before replacing fastener hardware in live assemblies. Apply consistent torque per the assembly specification for the mating fastener material to avoid galling, which is common with stainless steel threads. Use an anti-seize compound rated for stainless steel if repeated removal is expected.