Value Collection 30635 Hex Lock Nut 5/16-18 316 Ss

Product Description

The VALUE COLLECTION 30635 is a 5/16-18 UNC hex lock nut with a nylon insert locking mechanism, manufactured from Grade 316 stainless steel. The nylon insert collar deforms around the mating thread when driven down, creating friction-based resistance to vibration loosening without damaging the fastener. At 11/32 inches high with a 1/2-inch width across flats, this nut fits standard hex tooling and is suited for corrosive or wet environments where stainless alloy performance is required. Installation is handled by mechanical and plumbing trades as well as pool and marine service technicians working with stainless hardware.

This hex lock nut is used in light structural, plumbing, HVAC mounting, and pool equipment applications where vibration resistance and corrosion resistance are both required. The 316 stainless steel grade provides superior chloride and saltwater resistance compared to 304 alloys, making it a common choice for pool deck hardware, coastal installations, chemical-exposure environments, and marine-adjacent mechanical assemblies. Right-hand thread direction follows standard UNC convention.

Key Features

• Grade 316 stainless steel construction for enhanced corrosion and chloride resistance
• Nylon insert locking style provides vibration-resistant holding without thread damage
• 5/16-18 UNC thread size with right-hand thread direction
• 11/32-inch height and 1/2-inch width across flats for standard hex wrench fitment
• Inch measurement system with UNC fastener standard

Compatibility

Designed as a standard UNC 5/16-18 hex lock nut compatible with any 5/16-18 threaded bolt or stud requiring a nylon insert locking nut in stainless steel.

Installation Notes

Nylon insert lock nuts are installed by hand-starting the nut onto the mating thread, then driving to final torque with a standard hex wrench or socket. Power down or de-energize any assembly before replacing fasteners on electrical or mechanical equipment. Do not reuse nylon insert lock nuts after removal, as the nylon collar loses locking effectiveness once deformed. Follow applicable mechanical or structural codes for the specific installation type.