Gibraltar KN5X-6X-B3--R-- Ball Knob 1.38 in Red

Product Description

The GIBRALTAR KN5X-6X-B3--R-- is a ball-style control knob molded from polypropylene and finished in red. It measures 1.38 inches in diameter and 1.28 inches in height, with a hub diameter of 0.75 inches and a hole depth of 0.71 inches. The knob accepts multiple thread sizes, making it adaptable across a wide range of fastener configurations. Technicians and assemblers use it to provide a secure, hand-operable grip on threaded shafts in equipment panels, control assemblies, and mechanical fixtures. The polypropylene construction resists common shop chemicals and light impacts while keeping weight low at 0.4 pounds per unit.

This ball knob is suited for use in light industrial, commercial, and trade service applications where a hand-tightened control point is needed. Typical installations include HVAC equipment panels, electrical enclosure hardware, plumbing valve handles, and general mechanical assemblies. Its multi-thread compatibility allows a single SKU to cover several common shaft sizes, reducing the need to stock multiple knob variants for different equipment.

Key Features

• Ball grip style for comfortable hand operation without tools
• Polypropylene construction resists chemicals and light impacts
• Accepts hole sizes: 5/16-18, 5/16-24, 3/8-16, 3/8-24, M8, and M10 threads
• 1.38 inch diameter with 0.75 inch hub diameter for solid engagement
• Red color for quick visual identification on control panels
• Hole depth of 0.71 inches provides adequate thread engagement on standard shafts

Compatibility

Designed as a replacement or upgrade ball knob for threaded shafts sized 5/16-18, 5/16-24, 3/8-16, 3/8-24, M8, or M10 across light industrial and trade equipment applications.

Installation Notes

Installation requires no special tools — the knob threads directly onto a compatible shaft by hand. Verify the shaft thread size matches one of the accepted hole sizes before installation. Ensure the mating shaft is free of damage or debris that could prevent full thread engagement. No power shutoff is required for mechanical knob replacement, though equipment should be secured against unintended operation during service.