Our ball plunger screw provides reliable indexing and smooth ball pressure—ideal for positioning, detent, and locating applications. Ball Plunger Screw is a “threaded ball spring plunger” that combines the adjustability of a screw with the positioning and clamping capabilities of a ball plunger. It offers easy installation, precise positioning, and low friction, making it widely used in molds, fixtures, machining, and automated equipment.

Structural Features

Screw Body: Resembles a screw with threads, allowing direct insertion into workpieces or mounting holes.

Spring: Built into the screw body to provide continuous pressure.

Ball: Located at the tip, it extends and retracts while rolling on surfaces to minimize friction and wear.

Primary Functions

Positioning: The ball engages in locating holes or slots upon protrusion, ensuring precise alignment.

Clamping: Utilizes spring force to secure workpieces, preventing slippage.

Limiting: Serves as a mechanical stop point within structures.

Adjustment/Fixation: The threaded design allows for easy adjustment of installation depth.

Comparison:

The difference between it and a standard ball-head plunger lies in the following: The entire body of a standard ball-head plunger is threaded for mounting, with its ball-head function being its sole purpose. In contrast, the “screw” portion of the Ball Plunger Screw is one of its core functions, serving for adjustment.