Value Collection 30646 Hex Lock Nut 1/4-28 316 Ss Pack of 50

Product Description

The VALUE COLLECTION 30646 is a 1/4-28 hex lock nut with a nylon insert locking mechanism, manufactured from Grade 316 stainless steel. The nylon insert deforms around the mating threads to resist vibration-induced loosening without requiring adhesives or separate locking hardware. At 5/16 inches high with a 7/16-inch width across flats, this nut follows standard UNC inch-measurement fastener geometry. Grade 316 stainless steel provides strong resistance to corrosion and chemical exposure, making it well suited for marine, coastal, food-service, and industrial environments where fastener integrity under harsh conditions is required. Licensed tradespeople and maintenance professionals install these in both new construction and repair applications.

This nut is used wherever a 1/4-28 fine-thread locking fastener is needed in corrosion-prone or high-vibration installations. Typical applications include HVAC equipment frames, plumbing fixture mounting hardware, electrical enclosure assemblies, pool and spa equipment, and marine hardware. The right-hand thread direction is standard for most general mechanical assemblies. This listing is sold as a pack of 50 nuts, making it practical for shop stock or multi-unit service jobs.

Key Features

• Nylon insert locking style resists loosening from vibration and torque cycling without thread-locking compounds
• Grade 316 stainless steel construction provides superior corrosion resistance in wet, marine, and chemical environments
• 1/4-28 fine-thread profile for precise thread engagement and higher tensile load capacity compared to coarse-thread equivalents
• Right-hand thread direction compatible with standard fastener tooling
• UNC inch fastener standard for broad compatibility with North American hardware
• Pack of 50 supports bulk service and shop-stock applications

Compatibility

Designed as a standard replacement or stock fastener for any assembly requiring a 1/4-28 right-hand thread hex lock nut with a nylon insert in Grade 316 stainless steel.

Installation Notes

Install and remove using a wrench sized for a 7/16-inch across-flats hex nut. De-energize, depressurize, or shut off any system before servicing fastened assemblies. Nylon insert lock nuts are generally considered single-use — the locking insert loses clamping effectiveness after removal and should be replaced rather than reused in critical joints. Follow applicable mechanical and structural codes for torque and joint requirements.