Gibraltar G10-2800-C Lobed Knob 1 in 4 Point Thermoplastic

Product Description

The GIBRALTAR G10-2800-C is a 4-point lobed knob designed for tool-free manual adjustment and fastening applications across industrial, HVAC, and mechanical equipment. Molded from thermoplastic elastomer (TPE), the knob provides a firm, slip-resistant grip even in oily or wet conditions. It features a 1-inch head diameter, an overall height of 0.75 inches, and accepts a 1/4-20 threaded stem with a 3/8-inch thread depth. The hub diameter measures 7/16 inches. This knob is typically installed by HVAC technicians, equipment assemblers, and maintenance mechanics who require hand-tightened hardware on panels, covers, and access doors.

The G10-2800-C suits residential and light commercial applications where frequent manual access is needed without tools. Common install scenarios include equipment access panels, duct covers, filter housings, control enclosures, and general industrial machinery. The 4-lobe profile distributes hand torque evenly, making it well suited for repeated removal and reinstallation cycles. The black TPE finish blends with standard equipment aesthetics and resists UV degradation in typical indoor service environments.

Key Features

• 4-point lobed profile for comfortable, tool-free hand tightening and loosening
• Thermoplastic elastomer construction provides a non-slip, grippy surface
• 1-inch head diameter with 7/16-inch hub diameter for compact fitment
• 1/4-20 threaded hole with 3/8-inch thread depth for standard fastener compatibility
• 0.75-inch overall height keeps a low profile on panels and enclosures
• Black finish suits standard equipment and resists common shop contaminants

Compatibility

Designed as a standard 1/4-20 lobed knob replacement or new-installation hardware for equipment panels, access covers, and mechanical assemblies requiring hand-adjustable fastening.

Installation Notes

Installation requires no special tools — thread the knob onto a 1/4-20 stud or bolt by hand. Ensure the mating thread length does not exceed the 3/8-inch hole depth to avoid bottoming out before the knob seats flush. Power down or de-energize any equipment before opening access panels or covers secured by this knob. Do not use an impact driver or power tool to install or remove this knob, as over-torque will damage the TPE hub.