Gibraltar 5J55B941A8Z001G Lobed Knob 3-point Black

Product Description

The GIBRALTAR 5J55B941A8Z001G is a 3-point lobed knob constructed from thermoplastic elastomer (TPE) with a black finish. It features a 2.17-inch head diameter and a 3/8-16 threaded stem with 1 inch of thread engagement. The TPE construction provides a firm yet comfortable grip surface, making it well suited for repeated hand-tightening applications on enclosures, panels, fixtures, and equipment assemblies. At 0.09 pounds, it is a lightweight fastening component used across HVAC, electrical, and general industrial equipment. Technicians and assemblers install this knob wherever a tool-free, hand-adjusted fastener is needed.

This lobed knob is commonly used on electrical enclosures, control panel covers, access doors, and mechanical equipment housings where hand-operated adjustments or removal are required. The 3/8-16 thread pattern is a standard coarse-thread size found widely across trade equipment in HVAC, electrical distribution, and light industrial applications. Its compact overall height of 1.08 inches makes it appropriate for installations with limited clearance above the fastening surface.

Key Features

• 3-point lobed grip profile for positive hand torque without tools
• Thermoplastic elastomer (TPE) construction for grip comfort and durability
• 2.17-inch head diameter provides a wide grip surface for easy operation
• 3/8-16 coarse-thread stem is a widely compatible standard thread size
• 1-inch thread length provides adequate engagement depth for most panel and enclosure applications
• Lightweight at 0.09 pounds — suitable for weight-sensitive assemblies

Compatibility

Designed as a standard 3/8-16 threaded lobed knob for use on enclosures, panels, and equipment assemblies that require hand-tightened fastening without tools.

Installation Notes

This knob is installed by hand or with light assistance from a screwdriver or wrench on the mating stem hardware. Before servicing any panel or enclosure fastener, de-energize all circuits per NFPA 70 (NEC) lockout/tagout requirements. Verify that the mating threaded insert or stud is 3/8-16 before installation. Do not exceed hand-tight torque unless the assembly specifies a torque value for this fastener type.