M4 X 6mm Hex Socket Spring Ball Point Grub Screws 304 Stainless Steel 20 Pieces For Precision Assemblies Wear Resistant And Corrosion Resistant Fasteners With Inner Hex Socket And Machinery Projects

High-Quality M4 Ball Point Grub Screws with Spring
✔️ 4mm dia, 6mm length, 2.5mm ball, 304 stainless, 20pcs

These ball point grub screws combine a spring plunger with a compact set-screw body, ideal for precise locating and indexing in fixtures, jigs, and modular assemblies. Use in automotive, electronics, and woodworking projects where repeatable positioning is critical. Dimensions:

Dimension	Metric	Inch
Diameter	4 mm	0.15 in
Thread Length	6 mm	0.23 in
Total Length	6.8 mm	0.26 in
Hex Socket	2 mm	0.07 in
Ball Plunger Dia	2.5 mm	0.09 in

✅ Diameter 4 mm; Thread M4 x 6 mm; Pitch 0.7 mm
✅ Ball Plunger Dia 2.5 mm; Spring-loaded for even load distribution
✅ Material SUS304 stainless steel for corrosion resistance
✅ Hex Socket: 2 mm; burr-free threading
✅ Package: 20 pieces per pack

💡 What is a spring ball plunger screw used for in mechanical assemblies?

A handy component used to locate and index parts in fixtures and machines.

- Handy for repeatable positioning in jigs - Ball-bearing action reduces friction and wear - Works with standard M4x6mm threads in metal fixtures - Suitable for indexing, clamping positioning, and detent functions