Gibraltar 34148 Knob Handle Plunger 3/8-16 Non-locking

Product Description

The GIBRALTAR 34148 is a non-locking knob handle plunger with a threaded stud body and no external knob, designed for use in indexing, positioning, and locking applications across industrial and mechanical assemblies. Built from steel with a zinc finish, it features a 3/8-16 thread size with a 0.75-inch thread length and a maximum plunger diameter of 0.186 inches. The plunger delivers an initial end force of 1.5 pounds and a final end force of 8 pounds, making it suited for light-duty positive-stop and detent applications. Machinists, maintenance technicians, and mechanical assemblers install this part in fixtures, jigs, enclosures, and equipment panels.

This plunger is used in applications requiring a compact, flush-mount or stud-mount detent mechanism. The knobless threaded stud design allows installation in tight clearance areas where an external knob would interfere with adjacent components. With a plunger projection of 0.2188 inches and a plunger length of 1.691 inches, it fits into standard tapped holes on machinery panels, tooling fixtures, and industrial enclosures where repeatable positioning is required.

Key Features

• Non-locking plunger type for smooth detent engagement and release
• Threaded stud body without knob for flush or recessed mounting
• 3/8-16 thread with 0.75-inch thread length for secure installation in standard tapped holes
• Initial end force of 1.5 pounds rising to a final end force of 8 pounds
• Steel construction with zinc finish for corrosion resistance in general-duty environments
• Plunger diameter tolerance of plus 0.001 inches for consistent fit

Compatibility

Designed as an OEM-style replacement or direct-fit component for industrial machinery, tooling fixtures, and mechanical assemblies that use 3/8-16 threaded plunger hardware in a non-locking knobless configuration.

Installation Notes

Installation requires a properly tapped 3/8-16 threaded hole in the mating component. De-energize or lock out any equipment before servicing assemblies that contain this plunger. Use appropriate thread engagement depth to avoid bottoming the stud in blind holes. A stud thread size of 5/16-18 is also present on this part and should be confirmed against the mating hardware before installation.