Minerallac 4048 Flange Whiz Nut, Zinc Plated Steel, 1/4"-20 Lock Nut

Minerallac 4048 Flange Whiz Nut, Zinc Plated Steel, 1/4"-20 Lock Nut

The Minerallac 4048 Flange Whiz Nut is a 1/4"-20 serrated hex flange nut engineered for electrical and mechanical fastening applications that demand a secure, self-locking connection. Constructed from steel with a corrosion-resistant zinc plated finish, this flange nut is supplied 100 to a jar, giving electricians, panel builders, and maintenance crews a ready supply on hand for panel assembly, equipment mounting, and general fastening tasks. The serrated flange design paired with a coarse, right-handed thread delivers a dependable mechanical hold that resists loosening under vibration, making it a practical choice for job sites where connection integrity matters.

Beyond raw holding power, the 4048 is designed to protect the hardware it's paired with. Because the nut requires greater torque to loosen than to tighten, it maintains clamp force over the life of the installation without galling the mating screw threads — a detail that keeps both the nut and bolt reusable and reduces wear during routine maintenance or re-torquing. The flange also spans oversized or slightly misaligned mounting holes, which simplifies field installation when conditions aren't perfectly drilled or when working with pre-punched enclosures and brackets. This combination of self-locking performance and thread-friendly design makes the 4048 a dependable choice for high-volume assembly work where consistent, repeatable fastening quality is essential, whether on a single panel build or across a large production run of mounted equipment.

Key Features

• Trade Size: 1/4"-20 coarse thread for standard fastening applications.
• Durable Construction: Steel body with a Zinc Plated finish for corrosion resistance and long service life.
• Self-Locking Performance: Requires a greater amount of torque to loosen than to tighten, helping maintain a secure connection over time.
• Thread-Friendly Design: Does not gall screw threads, preserving mating hardware during installation and removal.
• Versatile Fit: Spans oversized or poorly aligned holes, simplifying installation in imperfect mounting conditions.
• Uniform Bearing Stress: The flange provides a more uniform bearing-stress to clamp-force ratio than other low carbon lock nuts, improving joint reliability.
• Hardness Rating: Rockwell HR15N 78 – 90 for consistent material performance.
• Right-Handed Thread: Standard right-handed, coarse thread direction for compatibility with common fasteners.
• Pack Quantity: Supplied 100 pieces per jar for convenient inventory management.

Technical Specifications

• Product Type: Serrated Hex Flange Nut
• Material Of Construction: Steel
• Country Of Origin: China
• Product Color: Silver
• Thread Direction: Right-Handed
• Rockwell Hardness: Rockwell HR15N 78 – 90
• Thread Type: Coarse

Typical Applications

• Electrical Panel and Enclosure Assembly
• Equipment and Bracket Mounting
• General Industrial Fastening
• Applications Requiring Self-Locking Hardware
• Fastening Through Oversized or Misaligned Holes

Why Minerallac?

Minerallac fasteners like the 4048 Flange Whiz Nut are engineered with a serrated flange design that delivers a more uniform bearing-stress to clamp-force ratio than other low carbon lock nuts, giving installers confidence in the security of every connection. The zinc plated steel construction resists corrosion while the coarse, right-handed thread and controlled Rockwell hardness ensure consistent performance and compatibility with standard 1/4"-20 hardware. Supplied 100 to a jar, these flange nuts give electrical and mechanical professionals a reliable, ready-to-use supply for demanding job site conditions, whether they're assembling panels, mounting equipment, or securing hardware through oversized or misaligned holes.