A heavy-duty M3 x 5 mm countersunk screw made from Grade 12.9 alloy steel with a black finish perfect for high‑strength fastening where space is limited and a flush finish is required. The flat hex socket head allows secure tightening with an Allen key while sitting flush with the surface, giving a clean, professional look. Designed for mechanical, electronics, robotics, or precision assemblies where strength and reliability are critical.

Specifications:

• Thread Size: M3
• Length: 5 mm
• Head Type: Flat Countersunk Hex Socket
• Material: Alloy Steel (Grade 12.9, high strength)
• Finish: Black Oxide or Black Coating
• Thread Type: Fully Threaded
• Drive Size: ~2.5 mm Allen Key (typical for M3)
• Tensile Strength: High — compliant with Grade 12.9 (typically ~1,200 MPa tensile strength)