Electro Hardware A3531-7 Round Knob Handle Nickel Plated

Product Description

The ELECTRO HARDWARE A3531-7 is a round knob handle machined from brass and finished in nickel plating. It is designed for use in control panels, enclosures, and industrial equipment where a secure, hand-operated grip point is required. The knob features a 1.5-inch projection and a 2-inch center-to-center measurement, with an 8-32 thread size for straightforward fastener compatibility. Electricians, panel builders, and instrumentation technicians commonly specify this type of hardware during enclosure assembly and field retrofits.

This round knob handle is suited for light industrial, commercial, and OEM equipment applications. It is commonly installed on control cabinets, HVAC control panels, electrical enclosures, and machine access doors where a smooth, corrosion-resistant grip surface is needed. The nickel-plated brass construction provides durability in dry and lightly humid indoor environments.

Key Features

• Round knob profile for comfortable hand operation without tools
• Brass base material with nickel plating for corrosion resistance
• 1.5-inch projection suitable for panel-face and door-edge mounting
• 8-32 thread size compatible with standard machine screw fasteners
• Series A designation for consistent hardware family sourcing
• UNSPSC Code 31162801 for procurement and cataloging compliance

Compatibility

Designed as a general-purpose round knob handle for control panels, electrical enclosures, and industrial equipment requiring an 8-32 threaded mount.

Installation Notes

Installation is typically performed by electricians or panel builders during enclosure assembly or service. Power down all circuits to the enclosure before disassembling any panel hardware. Use the appropriate 8-32 fastener and verify thread engagement depth to avoid stripping the brass knob insert. Follow applicable NEC guidelines when working inside energized enclosure environments.