10 Pack M3 x 4mm Carbon Steel Spring Ball Plungers, Compact Spring Loaded Positioning Components for Indexing, Locating & Locking in Fixtures, Jigs and Mechanical Assemblies

M3 x 4mm Spring Ball Plunger Carbon Steel
✔️ Threaded Ball Detent Plunger for Positioning Pack of 10

This is a compact spring ball plunger made from carbon steel, designed for screw-in installation where repeatable positioning and light locking are needed. These plungers are commonly used in fixtures, jigs, and small mechanical assemblies that rely on consistent spring pressure for accurate alignment. Pack size is 10 pieces.

✅ Pack size includes 10 spring ball plungers
✅ Thread size M3 with 4 mm body length
✅ Material carbon steel for strength and wear resistance
✅ Spring loaded ball provides steady positioning pressure
✅ Threaded design allows precise depth adjustment
✅ Used for indexing, locating, and light locking tasks
✅ Ideal for fixtures, jigs, and compact mechanisms

💡 What are spring ball plungers used for in precision mechanical positioning systems?
They provide controlled spring pressure to hold parts in place while still allowing easy adjustment.

• Spring force helps prevent shifting or vibration during operation

• Ball detent action supports smooth engagement and release

• Threaded bodies allow fine tuning of position and preload

• Compact size fits tight assemblies without adding bulk

These M3 spring ball plungers are a handy choice when you need simple installation, repeatable alignment, and reliable positioning in small mechanical setups.