Stainless steel M4 x 12mm hex spring ball plunger screws, 20 piece set of precision positioning plungers with smooth spring loaded ball action, compact flat head design for jigs, fixtures, assemblies and mechanical equipment

Stainless Steel M4 x 12mm Spring Ball Plunger Screws
✔️ 20 Piece Hex Drive Positioning Plunger Set

These spring ball plunger screws are built for positioning, indexing, and light holding tasks in compact mechanical setups. They’re commonly used in jigs, assemblies, fixtures, door hardware, cam and gear positioning, and small instruments where smooth engagement and repeatable alignment are needed.

Pack size: 20 spring ball plunger screws.

✅ Thread size is M4 with 12 mm overall length
✅ Stainless steel body for strength and corrosion resistance
✅ Spring loaded ball tip provides controlled positioning pressure
✅ Precision thread with solid locking feel
✅ Internal hex drive supports clean, concealed installation
✅ Smooth ball movement helps equipment run evenly
✅ Easy to install and remove for maintenance or adjustment
✅ Used in mechanical equipment, fixtures, hardware fittings, and compact instruments

Plunger Dimensions
All dimensions shown in millimeters

Thread Size M4
Overall Length 12.0

💡 Why are stainless steel spring ball plunger screws used for precise positioning in machinery?
Spring ball plunger screws are used when accurate alignment and consistent pressure are needed without bulky components.

• Internal spring applies steady force for repeatable positioning

• Ball tip allows smooth contact without damaging mating parts

• Stainless steel construction holds up in indoor and outdoor environments

This M4 spring ball plunger set is a handy choice for clean indexing, smooth operation, and dependable positioning in everyday mechanical and industrial applications.