Value Collection KP71884 Serrated Flange Nut 1/2-13 50-pack

Product Description

The VALUE COLLECTION KP71884 is a Grade 2 steel serrated flange nut with a zinc-plated finish, designed for 1/2-13 UNC threaded fastener applications. The integrated serrated flange distributes clamping load across a wider bearing surface and bites into the mating material to resist loosening under vibration. The flange diameter measures 1.031 inches and the overall height reaches 0.458 inches. This nut is a standard hardware component used by HVAC technicians, plumbers, electricians, and general trade professionals wherever a secure, vibration-resistant threaded connection is required. Sold in a pack of 50.

Serrated flange nuts in 1/2-13 UNC thread are commonly used in mechanical equipment mounting, electrical panel and enclosure assembly, HVAC unit framing and bracket work, and general structural fastening applications. The zinc-plated finish provides a baseline level of corrosion resistance suitable for indoor and sheltered outdoor installations. The serrated bearing face eliminates the need for a separate lock washer in most standard applications, reducing parts count and assembly time.

Key Features

• Serrated flange face resists loosening under vibration without a separate lock washer
• 1/2-13 UNC thread size fits standard imperial fastener assemblies
• Grade 2 steel construction provides adequate tensile strength for general-purpose fastening
• Zinc-plated finish offers corrosion resistance for indoor and sheltered installations
• Flange diameter of 1.031 inches spreads clamping load over a wider surface area
• Pack of 50 supports high-volume service and installation work

Compatibility

Designed as a general-purpose replacement or stock fastener for any 1/2-13 UNC threaded application requiring a serrated flange nut with a 1.031-inch flange diameter.

Installation Notes

Installation is appropriate for any trade professional performing mechanical or structural fastening with 1/2-13 UNC hardware. Ensure mating threads are clean and free of debris before installation. Apply torque with a standard wrench sized to the 0.750-inch maximum width across flats; do not over-torque, as Grade 2 steel has lower proof load limits than Grade 5 or Grade 8 hardware. The serrated flange requires firm seating against the mating surface to engage the locking teeth properly.