Gibraltar G10-0033-C Ball Knob Threaded Hole Phenolic Black

Product Description

The GIBRALTAR G10-0033-C is a threaded-hole ball knob constructed from phenolic material in a black finish. It measures 1-3/8 inches in diameter with a height of 1-5/16 inches, making it a compact, hand-operable control knob suited for industrial and mechanical equipment. The knob accepts a 1/2-13 thread and provides a hole depth of 7/8 inch for secure fastener engagement. A 5/8-inch hub diameter supports stable mounting. Its smooth grip surface and phenolic construction offer durability in both shop and fieldservice environments. Technicians in HVAC, electrical, and light mechanical trades regularly use this type of hardware for panel controls, equipment covers, and adjustable fixtures.

This ball knob is appropriate for use on industrial machinery, control panels, enclosure doors, and mechanical assemblies where a hand-tightened threaded fastener is needed. The 1/2-13 thread size is a common standard-coarse thread, making this knob compatible with a wide range of bolts and threaded inserts found in commercial and light industrial equipment. It is well suited for applications requiring repeated manual adjustment without tools.

Key Features

• Phenolic construction provides electrical insulation and resistance to shop chemicals
• 1-3/8 inch diameter ball profile for comfortable hand-grip operation
• 1/2-13 threaded hole with 7/8 inch hole depth for secure engagement
• Smooth grip exterior for clean, consistent hand-tightening
• 5/8 inch hub diameter supports stable, centered mounting
• Black finish suitable for control panels and equipment enclosures

Compatibility

Designed as a standard threaded-hole ball knob for use with 1/2-13 threaded bolts, studs, or inserts on industrial equipment, control panels, and mechanical assemblies.

Installation Notes

This knob is installed by threading it onto a compatible 1/2-13 stud or bolt by hand. Ensure the mating thread is clean and free of debris before installation. No special tools are required for standard hand-tightening applications. Power down or de-energize any equipment before servicing panel hardware per applicable NFPA 70 (NEC) or equipment manufacturer guidelines.