Gibraltar 5B50F207A8Z001G Lobed Knob 5-point 1.91in Black

Product Description

The GIBRALTAR 5B50F207A8Z001G is a 5-point lobed knob made from thermoplastic elastomer (TPE), designed for hand-tightening applications where a tool-free grip is required. The lobed profile provides ergonomic leverage for repeated adjustments without tools. With a head diameter of 1.91 inches and a 3/8-16 threaded stem, this knob fits standard fastener assemblies used in equipment panels, jigs, fixtures, and mechanical enclosures. The TPE construction offers flexibility and a firm grip even in oily or wet conditions. Technicians and assemblers in HVAC, electrical, and light industrial trades use this type of knob for access panels and adjustable mounting points.

This lobed knob suits residential and light commercial applications where tool-free adjustment is needed on equipment covers, control panels, or field-assembled fixtures. The 3/8-16 stem size is a common thread specification found across a wide range of industrial and trade equipment. The black finish provides a clean, neutral appearance that blends with standard panel and enclosure hardware. It installs quickly by hand or with minimal tooling, making it practical for service techs who need fast panel access in the field.

Key Features

• 5-point lobed profile for ergonomic hand tightening without tools
• Thermoplastic elastomer construction provides grip in oily or wet conditions
• 1.91-inch head diameter for adequate torque by hand
• 3/8-16 threaded stem fits common fastener assemblies
• Hub diameter of 0.93 inches and overall height of 1.09 inches for compact fitment
• Black color suits standard panel and enclosure hardware

Compatibility

Designed as a standard replacement or add-on lobed knob for equipment panels, fixtures, and enclosures using 3/8-16 threaded fastener assemblies across HVAC, electrical, and light industrial applications.

Installation Notes

Installation is typically performed by hand threading onto a 3/8-16 male stud or bolt. Ensure the mating thread is clean and free of debris before installation. Power down or de-energize any equipment before accessing panels where this knob is used. No special tools are required, but care should be taken not to overtighten, as TPE hubs can deform under excessive force.