- 5 (M5): Nominal thread diameter of \(5\text{ mm}\).
- 0.8: Coarse thread pitch of \(0.8\text{ mm}\).
- 6: Thread length of \(6\text{ mm}\) (measured from right under the cylindrical head).
- 12.9: High-strength Grade 12.9 alloy steel. [1, 2, 3, 4]
Grade 12.9 is one of the strongest standard steel grades, offering exceptional tensile strength (typically \(\approx 1220\text{ N/mm}^2\)) and hardness, making it ideal for high-stress industrial machinery, die fixturing, and automotive clamps. These screws feature a cylindrical barrel head and are tightened using a standard 4 mm Allen (hex) key
Share with Friends
Trading is more effective when you share products with friends!Share you link
Share to