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The GIBRALTAR 5A03A207A8Z002G is a 4-point lobed knob constructed from thermoplastic elastomer (TPE) in black. It is designed for hand-tightening and manual adjustment applications where a tool-free grip is required. The knob features a 3/8-16 threaded hole with a 0.68-inch thread depth, a 1.99-inch head diameter, and an overall height of 0.86 inches. The TPE construction provides a firm, tactile grip surface. This part is commonly installed by HVAC technicians, electricians, plumbers, and equipment maintenance professionals on access panels, enclosures, jigs, and adjustable equipment assemblies.
This lobed knob is suited for light-duty manual fastening tasks in both residential and commercial settings. It is a direct-mount hardware component used on machinery, control panels, equipment housings, and maintenance access points wherever a 3/8-16 threaded stud or insert is present. The 4-lobe profile allows adequate torque by hand without tools, making it practical for frequently adjusted or serviced components.
Designed as an OEM-style replacement or direct-fit hardware knob for equipment and enclosures using 3/8-16 threaded studs or inserts.
Installation requires no special tools — the knob threads directly onto a 3/8-16 male stud or into a 3/8-16 threaded insert by hand. Confirm thread engagement depth does not exceed 0.68 inches to avoid bottoming out. Power down or de-energize any associated equipment before removing or replacing panel hardware. Follow applicable equipment manufacturer guidelines for access panel fastener torque requirements.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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