Gibraltar 5B40A206A8Z002G Lobed Knob 5-point Black

Product Description

The GIBRALTAR 5B40A206A8Z002G is a 5-point lobed knob constructed from thermoplastic elastomer (TPE) and finished in black. It is designed for hand-tightening and manual adjustment applications where a tool-free, ergonomic grip is required. The knob features a 5/16-18 threaded stem hole with a thread depth of 0.89 inches, a head diameter of 1.52 inches, and an overall height of 1.09 inches. TPE construction provides a firm yet compliant grip surface that resists slipping under hand torque. Electricians, HVAC technicians, and equipment assembly professionals install this type of knob on panels, enclosures, fixtures, and adjustable mechanical assemblies.

This lobed knob is suited for use on control panels, enclosures, jigs, fixtures, and light mechanical equipment where frequent manual adjustment is needed. The 5-point lobe profile distributes grip force evenly and allows positive actuation without tools. Its compact hub and low-profile design make it appropriate for tight-clearance installations in both residential and commercial equipment settings. The 5/16-18 thread size is a common fastener standard found across a wide range of trade and industrial equipment.

Key Features

• 5-point lobed profile for comfortable, tool-free hand operation
• Thermoplastic elastomer (TPE) construction for firm, slip-resistant grip
• 5/16-18 threaded hole with 0.89 inches of thread engagement depth
• 1.52 inches head diameter for adequate hand contact area
• Overall height of 1.09 inches with a hub diameter of 0.69 inches
• Black finish suits standard panel and enclosure aesthetics

Compatibility

Designed as an OEM-style replacement or new-installation lobed knob for equipment using a 5/16-18 threaded stud or screw, common across control panels, enclosures, and adjustable mechanical assemblies.

Installation Notes

Installation requires no special tools — thread the knob onto a 5/16-18 stud or machine screw by hand. Ensure the mating thread length does not exceed the 0.89-inch hole depth to avoid bottoming out before the knob seats fully. De-energize or lock out any equipment before servicing panels or enclosures where this knob is being replaced. Do not exceed the hand-torque rating appropriate for TPE knobs, as over-tightening can strip the threaded insert.