Value Collection BDNA-NT-9513-CB Hex Flange Lock Nut 1/2-13

Product Description

The VALUE COLLECTION BDNA-NT-9513-CB is a hex flange lock nut sized 1/2-13, manufactured from steel with a zinc finish. The integrated flange distributes clamping load over a wider bearing surface, reducing the need for a separate washer and improving resistance to loosening under vibration. The zinc finish provides basic corrosion resistance for general indoor and sheltered outdoor applications. This fastener meets ASTM A325 standards, making it appropriate for structural and mechanical assemblies where a recognized fastener specification is required. Tradespeople across HVAC, plumbing, electrical, and general mechanical service install this type of nut in equipment mounting, panel fastening, and structural connections.

This hex flange lock nut is suited for use in residential and light commercial trade applications wherever a 1/2-13 unified coarse thread fastener is specified. Typical install scenarios include equipment base mounting, access panel attachment, bracket fastening, and general mechanical assembly where vibration resistance and a broad bearing surface are needed. The ASTM A325 rating supports use in structural bolt assemblies where that standard is called out in project specifications or equipment documentation.

Key Features

• Integrated flange bearing surface eliminates the need for a separate flat washer in most applications
• Locking design resists loosening caused by vibration and dynamic loads
• Steel construction with zinc finish for corrosion resistance in general service environments
• Meets ASTM A325 fastener standard for structural and mechanical assemblies
• 1/2-13 unified coarse thread for broad compatibility with standard inch-system fasteners

Compatibility

Designed as an OEM-style replacement or service fastener for any assembly specifying a 1/2-13 hex flange lock nut meeting ASTM A325 in steel with zinc finish.

Installation Notes

Installation is typically performed by licensed HVAC technicians, plumbers, electricians, or qualified mechanical contractors as part of equipment mounting or structural fastening work. De-energize and lock out all electrical circuits and shut off any pressurized systems before servicing fasteners on live equipment. Use an appropriately sized wrench or socket to achieve a snug, secure fit without overdriving. Follow applicable code requirements and equipment manufacturer torque guidelines when specified in project documentation.