Gibraltar ABK-052-G Ball Knob 1-7/8 in Aluminum Threaded

Product Description

The GIBRALTAR ABK-052-G is a smooth-grip aluminum ball knob designed for threaded-hole mounting in industrial and mechanical control applications. At 1.88 inches in diameter with a 1/2-13 threaded hole and a 0.75-inch hole depth, it provides a positive hand grip on machine controls, jigs, fixtures, and equipment panels. The natural aluminum finish is uncoated, making it suitable for environments where a lightweight, corrosion-resistant knob is needed. This part is sold individually and weighs 0.29 pounds.

This ball knob is used in a wide range of industrial, mechanical, and light manufacturing settings where a reliable hand-tightened control point is required. Typical applications include clamping levers, machine tool adjustments, fixture controls, and panel-mounted hardware. The smooth grip surface suits environments where gloves may be worn or where a snag-free profile is preferred. Installation requires no special tooling beyond threading the knob onto a compatible 1/2-13 stud or threaded fastener.

Key Features

• 1.88-inch diameter smooth-grip aluminum ball knob
• Threaded hole mount with 1/2-13 thread size
• Hole depth of 0.75 inches accommodates standard stud lengths
• Natural (uncoated) aluminum construction — lightweight and corrosion-resistant
• Smooth grip profile suitable for gloved or bare-hand operation

Compatibility

Designed for use with 1/2-13 threaded studs and fasteners in standard industrial and mechanical equipment applications requiring a threaded-hole ball knob mount.

Installation Notes

Installation is performed by threading the knob onto a 1/2-13 male stud or bolt to the desired depth. Ensure the mating stud does not exceed the 0.75-inch hole depth to avoid bottoming out and leaving the knob loose. Power down or de-energize any equipment before adjusting or replacing control knobs on live machinery. No special certifications are required for knob installation, but always follow the equipment manufacturer's service guidelines.