Gibraltar 5B40F207A8Z001G Lobed Knob 5 Point Black

Product Description

The GIBRALTAR 5B40F207A8Z001G is a 5-point lobed knob designed for manual adjustment applications in equipment panels, enclosures, and mechanical assemblies. Constructed from thermoplastic elastomer, the knob provides a firm, comfortable grip while resisting common shop fluids and wear. It features a 3/8-16 threaded stem hole for direct fastening to standard threaded shafts. With a head diameter of 1.52 inches and an overall height of 1.09 inches, it is a compact, lightweight control knob suited for applications where finger-operated adjustment is needed without tools. HVAC, electrical, and industrial equipment technicians commonly install this type of knob during panel assembly or equipment servicing.

This lobed knob is appropriate for use on residential and light commercial equipment panels, junction enclosures, control boards, and machinery requiring hand-tightened adjustments. The 3/8-16 thread size makes it compatible with widely used fastener standards across HVAC, electrical, and general mechanical equipment. It is typically used wherever a tool-free, repeatable manual adjustment point is needed on a threaded shaft or post.

Key Features

• 5-point lobed profile for improved finger grip and torque without tools
• Thermoplastic elastomer construction for durability and fluid resistance
• 3/8-16 threaded stem hole fits standard shaft sizes
• Compact 1.52 inch head diameter suits space-limited panel applications
• Black finish for a clean, professional appearance on equipment panels
• Lightweight at 0.06 pounds for use on weight-sensitive assemblies

Compatibility

Designed as an OEM-style replacement or new-installation lobed knob for equipment panels and enclosures using 3/8-16 threaded shafts across HVAC, electrical, and general mechanical applications.

Installation Notes

Installation requires no specialized tools — the knob threads directly onto a 3/8-16 shaft by hand. Verify the mating shaft thread pitch and diameter before installation to ensure proper engagement. Power down or de-energize any associated equipment before servicing panels or enclosures where the knob is being installed or replaced. Do not overtighten, as thermoplastic elastomer hubs can deform under excessive torque.