Value Collection R56001458 Acorn Nut 3/8-16 Unc Grade 316

Product Description

The VALUE COLLECTION R56001458 is a standard acorn nut machined from Grade 316 stainless steel. Acorn nuts, also called cap nuts, feature a domed top that covers exposed thread ends, protecting threads from damage and preventing contact with sharp edges. This nut accepts a 3/8-16 UNC right-hand thread and measures 5/8 inches across the flats with an overall height of 5/8 inches. At 0.02 pounds per piece, it is suited for light fastening applications where corrosion resistance and a finished appearance are required. The uncoated stainless steel finish provides natural oxidation resistance without additional surface treatment.

Grade 316 stainless steel acorn nuts are commonly used in marine, chemical, food-service, and outdoor environments where exposure to moisture, salt, or mild corrosives would degrade standard carbon steel hardware. This nut is appropriate for plumbing fixture assemblies, pool and spa equipment mounting, HVAC enclosure fastening, and general mechanical assemblies where a capped thread end is preferred. Licensed tradespeople and maintenance professionals working in corrosive or wet environments typically specify 316 stainless for long-term fastener reliability.

Key Features

• Grade 316 stainless steel construction for enhanced corrosion resistance in wet and chemical environments
• 3/8-16 UNC right-hand thread for compatibility with standard inch-series fastener systems
• 5/8 inch width across flats accepts a standard hex wrench or socket
• Domed acorn profile caps and protects exposed thread ends
• Uncoated finish — no plating to chip, peel, or react with stainless fasteners
• Silver natural stainless color for a clean, professional appearance

Compatibility

Designed as a standard 3/8-16 UNC acorn nut for use with any 3/8-16 inch-series threaded bolt, stud, or rod requiring a capped end finish.

Installation Notes

Installation requires a 5/8 inch hex wrench or socket. Hand-tighten before applying tool torque to avoid cross-threading. When pairing with stainless steel bolts or studs, apply an anti-seize compound to prevent galling, which is common with 316 stainless fasteners under torque. Consult applicable mechanical codes for torque requirements specific to the assembly.