Versatile Ball Nose Spring Plungers – Perfect for jigs, fixtures, and machinery, these spring plungers ensure smooth operation and consistent pressure.
Spring Ball Screw Plunger is a positioning fastener that integrates spring, ball, and screw structures. Its basic construction typically includes:

Screw Body: Resembles a screw in shape, facilitating installation into threaded holes.

Spring: Provides continuous pressure or thrust.

Ball: Located at the screw's front end, retracts under external force and automatically protrudes when pressure is released.

Working Principle
When the screw plunger is screwed into the assembly hole, the internal spring pushes the front ball outward. The ball forms a locating, stopping, or fixing point on the part surface or in a groove/hole. When an external force pushes the ball, it compresses back into the housing. Upon release of the force, the spring pushes the ball out, restoring it to its original position.

Primary Functions

Positioning: Enables precise spatial control between components.

Locking/Stopping: Prevents loosening or displacement of parts due to vibration or external forces.

Quick Assembly/Disassembly: Facilitates convenient operation in positions requiring frequent disassembly, assembly, or adjustment.

Friction Reduction & Protection: The ball-head structure minimizes friction, extending service life.

Application Fields

Machine tool fixtures for mechanical equipment

Mold positioning

Adjustment mechanisms for precision instruments

Limit switches and fasteners for automated equipment

Quick-positioning components in aerospace and automotive industries

Spring Ball Screw Plunger is a spring-loaded ball-type plunger that can be tightened for secure fastening while also providing self-resetting positioning and locking functions.