Gibraltar G10-2820-AU Lobed Knob 4 Point Phenolic Black

Product Description

The GIBRALTAR G10-2820-AU is a 4-point lobed knob made from phenolic for use in hand-tightening and manual adjustment applications across industrial and trade settings. The knob features a 1.5-inch head diameter with a gloss finish and a 5/16-18 threaded hole with 0.5-inch thread depth. The hub diameter is 0.625 inches and the overall height is 1 inch. Phenolic construction provides durability, dimensional stability, and resistance to common shop chemicals. Licensed trades and mechanical technicians install this type of hardware in panel assemblies, fixtures, machine guards, and adjustment mechanisms requiring tool-free operation.

This lobed knob is suited for light industrial, commercial, and professional trade applications where a positive grip and repeatable hand-tightening are needed. Typical installations include equipment enclosures, jigs, fixtures, and HVAC or mechanical equipment panels that require periodic access or field adjustment. The 4-lobe profile gives a secure grip even with gloved hands. This is a single-piece item sold in multiples of 10.

Key Features

• 4-point lobe profile for secure grip with or without gloves
• Phenolic construction resists chemicals and maintains dimensional stability
• Gloss black finish for clean, professional appearance
• 5/16-18 threaded insert with 0.5-inch thread depth for standard fastener compatibility
• Compact 1-inch overall height fits space-constrained panel and fixture applications
• 0.625-inch hub diameter provides a solid base for torque transfer

Compatibility

Designed as a standard replacement or OEM-style lobed knob for applications using 5/16-18 threaded fasteners in industrial, mechanical, and trade equipment assemblies.

Installation Notes

Installation requires no special tools — thread the knob onto a 5/16-18 stud or bolt by hand. Ensure the mating thread is clean and free of debris before installation. Do not use power tools to drive the knob, as phenolic material can crack under excessive torque. Confirm thread engagement depth does not exceed the 0.5-inch thread length of the knob.