Gibraltar BBK-048-G Ball Knob 1.38 in Brass Threaded

Product Description

The GIBRALTAR BBK-048-G is a brass ball knob with a threaded hole mount, designed for use on machinery controls, panel handles, jigs, fixtures, and equipment adjustment points. The knob measures 1.38 inches in diameter and features a smooth grip surface with a natural brass finish. The threaded hole accepts a 1/2-20 thread with a hole depth of 0.625 inches. Licensed tradespeople and maintenance technicians install this type of hardware on industrial and commercial equipment where a secure, hand-operated grip is needed on threaded shafts or fasteners.

This ball knob is suited for light industrial, mechanical, and trade-equipment applications. It is commonly used on HVAC equipment enclosures, electrical panel components, and plumbing system controls where hand-adjustable hardware is required. The natural brass finish makes it compatible with environments where corrosion resistance and conductivity are considerations. It installs directly onto any matching 1/2-20 threaded shaft or stud.

Key Features

• Brass construction provides durability and corrosion resistance in service environments
• Threaded hole mount with 1/2-20 thread size for secure shaft engagement
• 1.38-inch diameter ball provides comfortable hand grip for adjustments
• 0.625-inch hole depth for adequate thread engagement on standard studs
• Smooth grip surface for clean, consistent hand operation
• Natural brass finish — no coating to chip or peel in field use

Compatibility

Designed as a standard replacement or installation ball knob for any threaded shaft or stud with a 1/2-20 thread specification. Suitable for use across industrial, mechanical, and trade-equipment applications requiring a hand-tightened brass ball knob.

Installation Notes

Installation requires threading the knob onto a compatible 1/2-20 male-threaded shaft or stud by hand. Ensure the mating thread is clean and free of debris before installation. Do not use power tools to drive the knob onto the shaft, as this may damage the brass threads. No special certifications are required for installation of this hardware component.