10 Pack M8 By 30mm Screw Thread Ball Plungers With Hex Socket High Carbon Steel Pro Grade Heavy Duty Spring Loaded Ball Plungers For Lubrication And Pneumatic Tools Black Finish
✔️ 10-pack M8 x 30mm ball plungers, 4mm ball, steel body
These spring-loaded ball plungers offer precise pressure, locking action, and repeatable positioning, made for use in mechanical fixtures, automation equipment, and pneumatic tool setups.
✅ M8 thread, 30mm total length (1.18"), 4mm ball diameter (0.16"), 1.25mm pitch (0.05")
✅ Spring load 12-50N, 65Mn spring material, 12.9-grade hex design
✅ High-carbon steel housing, blackened heat-treated finish for corrosion resistance
✅ Opposite-side hex socket 4mm, burr-free interior for smooth operation
✅ Applications: pressure, fixing, and precise positioning in mechanical equipment
💡 What is a ball plunger used for in precision mechanical assemblies?
Ball plungers provide precise stopping points and locking action in tight spaces. Handy for alignment in fixtures and automation lines.
- precise stopping points improve repeatability - ideal for fixture alignment and tension control - reduces wear with consistent contact pressure