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The GIBRALTAR G10-0140-D is a phenolic ball knob with a female insert mount designed for use on threaded shafts and machine controls. The knob measures 1-1/4 inches in diameter and 1-3/16 inches in height, with a 1/2-20 female thread and a stem size of 1/2-20 by 5/8 inches. The hole depth is 5/8 inches and the hub diameter is 37/64 inches. The smooth grip surface and black phenolic construction make it a practical choice for equipment panels, jigs, fixtures, and general industrial or shop applications. Installation requires no special tools and is suited for maintenance technicians and equipment assemblers.
This ball knob is commonly used in light industrial, manufacturing, and shop environments where a hand-tightened knob is needed on threaded machine shafts, fixtures, or adjustment mechanisms. The female insert style allows direct threading onto an existing male stud or shaft without additional hardware. It is appropriate for use on equipment panels, drill press depth stops, band saw guides, and similar manually adjusted components where a secure, tool-free grip is required.
Designed as a female insert ball knob compatible with 1/2-20 threaded male studs and shafts in light industrial fixtures, machine controls, and equipment panels.
Installation is performed by hand-threading the knob onto a compatible 1/2-20 male stud or shaft. 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 phenolic body or the insert. Verify thread engagement depth does not exceed the 5/8 inch hole depth to avoid bottoming out the insert.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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