Gibraltar 5A02B924A8Z001G Lobed Knob 1.75 in 4-point Black

Product Description

The GIBRALTAR 5A02B924A8Z001G is a 4-point lobed knob molded from thermoplastic elastomer (TPE) for firm, comfortable hand-tightening without tools. It features a 1.75-inch head diameter and a 1/4-20 threaded stem with 1.25 inches of thread engagement. The lobed profile gives technicians and installers secure grip torque even with gloved hands. TPE construction provides resistance to oils, mild solvents, and repeated handling in shop and field environments. This knob is a standard fastening component used across HVAC equipment panels, electrical enclosures, and mechanical assemblies where quick-access hand adjustment is needed.

This lobed knob is suited for residential and light commercial applications where panel covers, access doors, or adjustment fixtures require tool-free removal and reinstallation. Typical install scenarios include equipment access panels on air handlers, fan coil units, electrical junction enclosures, and general mechanical equipment where the 1/4-20 thread standard is used. The compact 0.75-inch overall height keeps the knob low-profile on shallow panels and enclosures.

Key Features

• 4-point lobed head provides multi-angle grip for hand-tightening in confined spaces
• 1.75-inch head diameter delivers adequate torque leverage without tools
• 1/4-20 threaded stem with 1.25 inches of thread length for standard fastener compatibility
• Thermoplastic elastomer construction resists oils and repeated handling
• Compact 0.75-inch overall height suits shallow panel and enclosure applications
• 0.68-inch hub diameter with 0.12-inch hub height for flush, stable seating on panel surfaces

Compatibility

Designed as a standard hand-knob replacement or new-install component for any equipment or enclosure using a 1/4-20 threaded stud or tapped hole.

Installation Notes

Installation requires no special tools — hand-thread the knob onto a 1/4-20 stud or into a tapped hole until snug. De-energize and lock out any equipment before removing or reinstalling access panel fasteners per applicable safety procedures. Do not use power tools to drive this knob, as over-torque will damage the TPE hub. Confirm thread engagement depth is sufficient for the application before placing the assembly into service.