Gibraltar KNL-4-G Knob Handle Plunger 1/2-13

Product Description

The GIBRALTAR KNL-4-G is a non-locking knob handle plunger designed for use in positioning, indexing, and locating applications across industrial and mechanical assemblies. The plunger features a knurled knob head for tool-free hand actuation and a spring-loaded mechanism that delivers an initial end force of 1 pound and a final end force of 10 pounds. The 1/2-13 threaded body installs directly into tapped holes, with a thread length of 0.875 inches and a body length of 1.13 inches. The maximum plunger diameter is 0.248 inches, with a plunger projection of 0.25 inches. Technicians and machinists installing fixtures, jigs, or panel assemblies use this type of hardware to provide repeatable manual positioning without tools.

The KNL-4-G suits light-duty to medium-duty locating and latch applications in machine guarding, enclosure panels, equipment fixtures, and similar assemblies. It is appropriate for use in HVAC equipment cabinetry, electrical panel assemblies, and mechanical equipment where a tool-free, hand-actuated plunger is needed. The non-locking design allows the plunger to retract freely under load and return to the extended position when pressure is released. Package quantity is 1 unit.

Key Features

• Non-locking plunger with spring end force range of 1 pound initial to 10 pounds final
• 1/2-13 thread size with 0.875-inch thread length for standard tapped-hole installation
• Knurled knob head, 1.0 inch in diameter and 0.38 inches tall, for tool-free hand operation
• Plunger diameter of 0.248 inches with a tight tolerance of plus 0.001 / minus 0.000 inches
• Compact body length of 1.13 inches suits space-constrained assemblies
• No locking element — plunger retracts and returns freely under spring pressure

Compatibility

Designed as an OEM-style or replacement knob handle plunger for assemblies requiring a 1/2-13 threaded non-locking spring plunger with a knurled knob actuator.

Installation Notes

Installation requires a tapped 1/2-13 hole of adequate depth to accept the thread length. Thread the plunger body in by hand and tighten with a wrench on the hex or body flats as applicable — do not overtighten into blind holes. Power down or de-energize any assembly before servicing panels or enclosures where this plunger is used as a latch or locating component. Verify plunger projection and travel clearance before finalizing installation in the assembly.