Gibraltar G10-0033-N Ball Knob Female Insert Phenolic

Product Description

The GIBRALTAR G10-0033-N is a phenolic ball knob with a female insert mount, designed for use as a hand-operated control knob on machinery, fixtures, and industrial equipment. It measures 1-3/8 inches in diameter and 1-5/16 inches in height, with a smooth grip surface finished in black. The female insert accepts a 7/16-20 threaded stem up to 3/4 inch in depth. The phenolic construction offers solid durability in light industrial and machine shop environments. This knob is installed by maintenance technicians, machine builders, and equipment assemblers working with standard threaded hardware.

This ball knob is suited for use on manual adjustment points, clamping assemblies, jigs, fixtures, and general machine tooling where a secure, hand-tightened grip point is needed. The female insert style mounts directly onto an existing threaded stud or bolt, making it a straightforward replacement or upgrade for worn or missing OEM knobs on equipment that uses 7/16-20 threaded fasteners. The smooth surface profile works in both clean and light-duty industrial settings.

Key Features

• Phenolic construction provides chemical resistance and dimensional stability in light industrial use
• Female insert mount accepts 7/16-20 threaded studs or bolts
• Hole depth of 3/4 inch accommodates standard threaded stud engagement
• 1-3/8 inch diameter ball with 5/8 inch hub diameter for positive hand grip
• Smooth grip surface in black finish
• Compact 1-5/16 inch height suits tight clearance installations

Compatibility

Designed as a standard female insert ball knob for equipment and fixtures using 7/16-20 threaded studs or bolts. Verify thread engagement depth does not exceed 3/4 inch hole depth before installation.

Installation Notes

This knob is installed by threading the female insert directly onto an exposed 7/16-20 threaded stud or bolt on the target equipment. De-energize or lock out any machinery before servicing control knobs or adjustment hardware. Hand-tighten to the desired position; do not use power tools on phenolic knobs, as over-torquing can crack the body. Confirm the stud length does not bottom out in the insert before fully seating the knob.