Gibraltar G10-2837 Lobed Knob 4-point 2.25 in Black

Product Description

The GIBRALTAR G10-2837 is a 4-point lobed knob designed for manual adjustment and clamping applications across a wide range of industrial and mechanical equipment. Constructed from thermoplastic elastomer, it provides a firm, ergonomic grip without the brittleness of standard hard plastics. The knob measures 2.25 inches in head diameter with a 1-inch hub diameter and an overall height of 1 inch. A 1/4-20 threaded hole with a 0.5-inch thread depth allows for direct installation onto standard fastener stems. Electricians, HVAC technicians, equipment assemblers, and maintenance professionals commonly install this type of knob on panels, enclosures, and adjustment mechanisms.

This lobed knob suits residential and light commercial equipment installations where hand-tightened fastening is required. Typical applications include HVAC access panel latches, electrical enclosure hardware, equipment guards, and industrial machinery adjustment points. The 4-lobe profile distributes hand force evenly, allowing secure tightening without tools in moderate-torque applications. Its black thermoplastic elastomer construction resists common shop chemicals and moderate temperature exposure, making it appropriate for use in mechanical rooms, equipment bays, and service panels.

Key Features

• 4-point lobed profile enables tool-free hand tightening and loosening
• Thermoplastic elastomer construction provides a durable, grip-friendly surface
• 2.25-inch head diameter for comfortable hand actuation
• 1/4-20 threaded hole with 0.5-inch thread depth fits standard fastener stems
• 1-inch overall height and 1-inch hub diameter for compact fitment
• Black finish for consistent appearance on panels and enclosures

Compatibility

Designed as a standard-thread replacement or new-installation lobed knob for equipment and enclosures using 1/4-20 fastener stems.

Installation Notes

Installation requires no special tools — the knob threads directly onto a 1/4-20 stem by hand. Confirm the mating stem thread is clean and undamaged before installation. Shut down and de-energize any equipment before servicing panels or enclosures where this knob will be installed. Do not exceed the hand-tightening torque appropriate for thermoplastic hardware, as overtightening can crack or strip the hub.