Premium M2x4mm Button Head Hex Socket Screws Black 100 Piece Set High Strength Grade 10.9 Alloy Steel Metric Bolts For CNC Machining Automotive Builds These Bad Boys Are Legit Fire Tier One Hardware

Premium high strength M2 button head screw set
✔️ M2x4mm hex bolts 100 pieces grade 10.9 alloy steel

This 100 piece set of black M2x4mm button head hex socket screws delivers solid holding power for precision machining jobs and tight automotive upgrades. You get reliable fastening performance on sensitive aluminum parts, drone frames, and custom 3d printed enclosures without stripping threads.

✅ Thread diameter measures 2mm / 0.08 inch across the profile
✅ Grip length sits at 4mm / 0.16 inch for shallow mounting spots
✅ Overall height reaches 5mm / 0.2 inch from base to top
✅ Driver slot width runs 1.5mm / 0.06 inch for standard bits
✅ Shank radius stays smooth to prevent material scoring on soft aluminum plates

💡 What drives the real world strength of M2 hex socket fasteners?

These premium grade 10.9 alloy steel buttons hold torque well under vibration and stay handy during heavy machining sessions.

- Grade 10 heat treatment guarantees yield strength near 980 MPa / 142 psi for reliable clamping force - Deep hex drive engagement prevents cam out when running compact drills at high RPM - Black oxide finish blocks surface rust while keeping friction low for quick assembly cycles ✝️