Gibraltar 5J30A205A8Z001G Lobed Knob 3-point 1/4-20

Product Description

The GIBRALTAR 5J30A205A8Z001G is a 3-point lobed knob molded from thermoplastic elastomer (TPE) in black. It is designed for hand-tightening applications where a tool-free, ergonomic grip is needed on threaded fastener assemblies. The knob features a 1/4-20 threaded hole with a 0.55-inch thread depth, a 1.18-inch head diameter, and an overall height of 0.65 inches. Technicians and assemblers use this type of knob on panels, enclosures, equipment covers, and control assemblies across HVAC, electrical, and light industrial service work. The TPE construction provides a firm grip surface and resists cracking under typical service conditions.

This lobed knob fits standard 1/4-20 threaded studs and bolts and is suited for residential and light commercial equipment panels, junction box covers, control cabinet doors, and similar hand-adjustment points. It is a direct drop-in for any application requiring a 3-lobe thumb knob with a 1/4-20 hole and is sold individually. Its compact hub profile keeps clearance requirements low in tight enclosure layouts.

Key Features

• 3-point lobe profile for reliable hand-tightening without tools
• Thermoplastic elastomer (TPE) construction for grip and impact resistance
• 1/4-20 threaded hole with 0.55-inch thread depth
• 1.18-inch head diameter and 0.65-inch overall height for compact fit
• 0.50-inch hub diameter and 0.15-inch hub height for low-profile mounting
• Black finish, sold individually

Compatibility

Designed as a replacement or spare lobed thumb knob for any threaded assembly using a 1/4-20 stud or bolt where a 3-point hand-adjustment knob is required.

Installation Notes

Installation is performed by hand — thread the knob onto a 1/4-20 stud or bolt until snug. No tools are required for standard hand-tightening applications. Verify thread engagement depth does not exceed the 0.55-inch hole depth to avoid bottoming out on the stud. Power down or de-energize any equipment panel before replacing knobs on live enclosures.