Gibraltar KN5C--B1-L-21-G Ball Knob 1 in Female Insert

Product Description

The GIBRALTAR KN5C--B1-L-21-G is a ball knob with a female insert mount designed for manual adjustment and control applications across a range of industrial and mechanical equipment. Constructed from thermoplastic, this knob measures 1 inch in diameter with a height of 1-5/64 inches and a smooth grip surface. The female insert accepts a 5/16-18 thread with a hole depth of 7/16 inches, making it suitable for use with standard threaded fasteners and rods. This style of knob is commonly installed by maintenance technicians and equipment assemblers on panels, jigs, fixtures, and light machinery.

This ball knob is suited for indoor applications where a compact, easy-to-turn control point is needed on equipment panels, enclosures, or mechanical assemblies. The thermoplastic construction resists common shop fluids and light impacts. Its black finish blends with standard industrial and electronic panel aesthetics. The smooth grip surface is appropriate for low-torque hand-adjustment tasks where frequent repositioning is required.

Key Features

• Female insert mount accepts 5/16-18 threaded fasteners
• 1 inch diameter thermoplastic body for lightweight, durable performance
• Smooth grip surface for easy hand adjustment
• Hole depth of 7/16 inches accommodates standard threaded rod engagement
• Black color suitable for panel and fixture applications

Compatibility

Designed as a standard replacement or new-installation ball knob for equipment panels, fixtures, jigs, and mechanical assemblies using 5/16-18 threaded fasteners.

Installation Notes

Installation is performed by hand or with standard hand tools. Ensure the mating threaded rod or fastener is free of debris before threading the knob into place. Do not overtighten, as thermoplastic inserts can strip under excessive torque. Power down or de-energize any equipment before servicing panels or assemblies where this knob is being installed or replaced.