Gibraltar G10-0033-D Ball Knob Female Insert 1-3/8 in

Product Description

The GIBRALTAR G10-0033-D is a phenolic ball knob with a female insert mount designed for use with 1/4-20 threaded fasteners. The knob measures 1-3/8 inches in diameter and 1-5/16 inches in height, with a smooth grip surface and a black finish. The female insert accepts a 1/4-20 x 3/8 inch stem and has a hole depth of 3/8 inches and a hub diameter of 5/8 inches. This type of knob is installed by machinists, maintenance technicians, and equipment assemblers on machine controls, jigs, fixtures, and light industrial equipment where hand-tightening is required without tooling.

The G10-0033-D is suited for use on manual adjustment mechanisms, equipment panels, and fixture assemblies in industrial, commercial, and light manufacturing environments. The phenolic construction provides good resistance to common shop chemicals and moderate heat. The smooth grip profile and compact diameter make it appropriate for applications with limited clearance around the control point. The female insert style allows the knob to thread onto an existing stud or bolt already installed in the assembly.

Key Features

• Female insert mount accepts 1/4-20 threaded studs for tool-free installation
• 1-3/8 inch diameter phenolic construction with smooth grip surface
• Hole depth of 3/8 inches accommodates standard stub lengths
• Hub diameter of 5/8 inches provides a stable base at the mounting point
• Black finish suits general industrial and equipment panel applications

Compatibility

Designed as an OEM-style replacement or direct-fit ball knob for equipment and fixtures using 1/4-20 threaded studs requiring a female insert style knob.

Installation Notes

Installation does not require special tooling — thread the knob onto the existing 1/4-20 stud by hand until snug. Verify the stud length does not exceed the 3/8 inch hole depth to avoid bottoming out before the knob seats properly. Inspect the mating threads for damage or contamination before installation. No power disconnection is required for most fixture and panel applications, but follow site lockout procedures when servicing powered equipment.