A high‑strength M3 x 20 mm countersunk screw made from premium Grade 12.9 alloy steel with a matte black finish perfect for flush‑mount, heavy‑duty fastening in mechanical, robotics, electronics and precision‑engineering applications. The flat hex socket head sits flush with the surface for a clean, unobtrusive appearance, while the internal hex drive allows secure tightening with an Allen key. Built for reliability and superior tensile strength, this screw delivers long-term performance where compact, strong fasteners are needed.

Specifications:

• Thread Size: M3
• Length: 20 mm
• Head Type: Flat Countersunk Hex Socket
• Material: Alloy Steel (Grade 12.9 – high strength)
• Finish: Black Oxide or Black Coating (matte black)
• Thread Type: Fully Threaded
• Drive Size: ~2.5 mm Allen Key (typical for M3)
• Tensile Strength: High (as per Grade 12.9, typically ~1,200 MPa)