Gibraltar DKN38-G Knob Handle Plunger 3/8-16 Steel

Product Description

The GIBRALTAR DKN38-G is a non-locking knob handle plunger designed for indexing, positioning, and light clamping applications in industrial and mechanical assemblies. It features a 3/8-16 thread with a 0.75 inch thread length and a Delrin knob for hand-tightening without tools. The steel body carries a black finish and delivers an initial end force of 0.25 pounds ramping to a final end force of 2 pounds. The maximum plunger diameter is 0.25 inches with a plunger projection of 0.19 inches. Machinists, toolmakers, maintenance technicians, and assembly professionals install this type of component in jigs, fixtures, and adjustment mechanisms where repeatable manual actuation is required.

The DKN38-G suits light-duty positioning tasks in production fixtures, machine guards, enclosures, and adjustable mechanical assemblies. Its compact body length of 0.94 inches and length under head of 0.75 inches make it well suited for confined panel or bracket installations where clearance is limited. The non-locking plunger design allows free plunger travel without a secondary locking mechanism, which is appropriate for applications requiring quick manual adjustment rather than fixed retention.

Key Features

• Non-locking plunger allows smooth, tool-free hand actuation
• Delrin knob provides comfortable grip without sharp edges
• 3/8-16 thread for compatibility with standard threaded holes and inserts
• Steel body with black finish for corrosion resistance in light-duty environments
• Low initial end force (0.25 pounds) with controlled ramp to 2 pounds final force
• Compact 0.94 inch body length fits space-constrained fixture designs

Compatibility

Designed as a standard replacement or new-installation knob handle plunger for fixtures, jigs, and mechanical assemblies using 3/8-16 threaded mounting points.

Installation Notes

Installation is performed by threading the DKN38-G into a 3/8-16 tapped hole by hand or with a wrench applied to the hex across-flats. Ensure the mating thread depth is sufficient to fully engage the 0.75 inch thread length before applying operational load. Disengage or unload any spring-loaded mechanisms before removal or reinstallation to prevent uncontrolled plunger movement. No special codes govern this hardware, but follow applicable machinery safety standards when servicing fixtures or jigs under load.