Gibraltar G10-2980-B Lobed Knob 5 Point 2.25 in Thermoplastic

Product Description

The GIBRALTAR G10-2980-B is a 5-point lobed knob constructed from thermoplastic elastomer (TPE), designed for tool-free hand adjustment on threaded fastener applications. The lobed profile provides multiple grip points for consistent torque application without tools. With a 2.25-inch head diameter and a 3/8-16 threaded stem size, this knob fits a wide range of machine screws, bolts, and panel hardware. TPE construction offers resistance to oils, chemicals, and moderate heat while providing a firm, comfortable grip surface. This type of hardware component is commonly installed by machine assemblers, equipment technicians, and facilities maintenance personnel.

The G10-2980-B is suited for use in industrial machinery, enclosures, jigs, fixtures, and general fabrication applications where frequent manual adjustment is required. The 5-lobe configuration allows for positive grip even in tight or awkward installation positions. It is appropriate for both light-duty equipment panels and heavier adjustment assemblies that accept a 3/8-16 threaded interface. Applications span manufacturing, HVAC equipment panels, electrical enclosures, and similar trade environments.

Key Features

• 5-point lobed profile for ergonomic, tool-free hand tightening
• Thermoplastic elastomer construction for chemical and oil resistance
• 2.25-inch head diameter for confident grip surface
• 3/8-16 threaded stem for compatibility with standard fastener hardware
• Hub diameter of 0.84 inches (27/32 inch) and overall height of 0.78 inches (25/32 inch)

Compatibility

Designed as a standard replacement or upgrade lobed knob for equipment and machinery using a 3/8-16 threaded interface where a 2.25-inch diameter, 5-point hand knob is required.

Installation Notes

Installation requires no special tools — the knob threads directly onto any compatible 3/8-16 stud or screw. Ensure the mating thread is clean and free of debris before installation. Do not exceed the hand-tightening torque appropriate for thermoplastic hardware, as over-torquing can damage the knob insert. Verify thread engagement depth is sufficient to seat the hub flush against the mounting surface.