Gibraltar 5J45B923A8Z001G Lobed Knob 3-point 1/4-20

Product Description

The GIBRALTAR 5J45B923A8Z001G is a 3-point lobed knob designed for manual adjustment and fastening applications across a wide range of industrial and mechanical equipment. Molded from thermoplastic elastomer (TPE), the knob provides a firm, comfortable grip without requiring tools. It features a 1.77-inch head diameter and accepts a 1/4-20 threaded stem with a 1-inch thread length. The overall height is 0.89 inches, making it a compact, low-profile control knob. HVAC technicians, electricians, and equipment maintenance professionals install this type of knob on control panels, enclosures, access covers, and field-adjustable components.

This lobed knob is suited for use on residential and light commercial equipment where hand-tightened fastening is required. Typical applications include control panel covers, junction enclosures, instrumentation housings, and access doors on HVAC units, electrical cabinets, and mechanical equipment. The 1/4-20 thread is one of the most common fastener sizes in North American trade equipment, making this knob broadly applicable across service and installation work.

Key Features

• 3-point lobed profile allows secure hand-tightening without tools
• Thermoplastic elastomer construction provides grip and impact resistance
• 1.77-inch head diameter for comfortable finger purchase
• 1/4-20 stem thread with 1-inch thread length for standard fastener compatibility
• 0.75-inch hub diameter and 0.12-inch hub height for low-profile mounting
• Black finish suits most control panel and enclosure aesthetics

Compatibility

Designed as a standard replacement or new-installation lobed knob for equipment using 1/4-20 threaded fastener points, including control panels, access covers, and enclosures across HVAC, electrical, and mechanical applications.

Installation Notes

Installation does not require special tools — thread the knob onto any 1/4-20 stud or threaded insert by hand. Power down or de-energize any equipment before removing or replacing panel hardware to comply with lockout/tagout procedures. Avoid over-tightening, as TPE knobs are designed for hand torque only and are not intended for wrench-driven installation. Verify thread engagement depth against the 1-inch thread length before installation.