Mini Indexing Plunger provides precise locking and positioning in compact assemblies. Ideal for tight spaces, our Mini Indexing Plunger ensures secure performance in mechanical, electronic, and custom equipment applications.
The Mini Indexing Plunger is a compact mechanical device featuring a spring-loaded ball head or pin rod. Its core function is to provide tactile “snap-in” positioning and holding force for moving components requiring precise alignment.

“Mini” refers to its compact size, typically featuring thread diameters around M3 (metric) or #4-40 (imperial), making it suitable for precision equipment with limited space. “Indexing” precisely describes its core function of stepwise positioning and locating.

Structural Features
Housing (Body): Compact size, typically threaded for easy mounting within equipment.

Plunger Pin: Internally spring-driven, extends or retracts to engage positioning holes.

Knob or Pull Handle: Manually operated by the user to pull up or rotate, causing the plunger to retract. Upon release, the plunger automatically returns to the positioning hole.

In miniaturized designs, the handle is also scaled down.

Mini Indexing Plunger Principles：

Spring Force: Continuously pushes the plunger outward.

Manual Operation: Temporarily retracts the plunger by pulling or rotating the handle.

Automatic Reset: After release, the plunger returns to its set position via spring force.