Gibraltar 5B50A205A8Z002G Lobed Knob 5-point 1/4-20

Product Description

The GIBRALTAR 5B50A205A8Z002G is a 5-point lobed knob designed for hand-tightening applications where tool-free fastening is required. Molded from thermoplastic elastomer (TPE), the knob provides a firm, comfortable grip across all five lobes. It features a 1/4-20 threaded insert with a 0.89-inch thread depth, making it well-suited for assemblies that require frequent adjustment or removal. The head diameter measures 1.91 inches and the overall height is 1.09 inches. This knob is a standard hardware component installed by technicians, assemblers, and field service professionals across HVAC, industrial, and equipment-panel applications.

This lobed knob is commonly used on control panels, enclosure covers, equipment guards, and adjustable fixtures where operators need quick, repeatable hand adjustment without tools. It is appropriate for both light-duty residential and commercial equipment installations. The 1/4-20 thread size is one of the most common unified coarse thread standards, making this knob a practical fit for a wide range of fabricated and OEM assemblies. It is typically installed in indoor environments where the TPE material provides adequate durability.

Key Features

• 5-point lobed profile for secure, ergonomic hand grip
• Thermoplastic elastomer (TPE) construction for durability and grip comfort
• 1/4-20 threaded insert with 0.89-inch thread depth
• 1.91-inch head diameter for easy manual operation
• Overall height of 1.09 inches with a 0.93-inch hub diameter
• Black finish suitable for panel and enclosure hardware applications

Compatibility

Designed as a standard hand-knob replacement or new-installation component for assemblies using 1/4-20 threaded fastener interfaces on equipment panels, enclosures, and adjustable fixtures.

Installation Notes

Installation requires no special tools — thread the knob onto a compatible 1/4-20 stud or bolt by hand. Confirm thread engagement depth does not exceed 0.89 inches to avoid bottoming out the insert. Inspect the mating thread for damage or contamination before installation. Torque should not exceed hand-tight for standard panel and enclosure applications.