+86 17740347765 june@jhbolt.com

Flat head hex socket screws are specially designed for applications requiring a flush surface after installation. With an internal hex drive and countersunk head, these screws offer secure fastening while maintaining a clean and unobstructed appearance—ideal for mechanical equipment, precision devices, electronics, and structural assemblies.

Manufactured with tight tolerances and robust materials, our flat head socket screws ensure excellent torque transmission, corrosion resistance, and long-term stability in high-performance environments.

bolt,nut

🔩 Product Specifications
Type: Flat Head Hex Socket Cap Screw
Head Style: Countersunk / Flat Head
Drive Style: Internal Hexagon (Allen Key)
Standard: DIN 7991 / ISO 10642 / ANSI B18.3

Available Sizes (Metric):

  • M3, M4, M5, M6, M8, M10, M12, M16
    Length Range:
  • 6mm – 100mm (custom sizes accepted)

Material Options:

  • Carbon Steel (Grade 8.8 / 10.9 / 12.9)
  • Stainless Steel (SS304 / SS316)
  • Alloy Steel

Surface Treatment:

  • Black Oxide
  • Zinc Plated (Clear / Yellow)
  • Dacromet / Geomet
  • Plain / Passivated
Grade 8.8 Hexagon Socket-head Din912 Carbon Steel 304 A4 80 Allen Bolt M3 M6 M8

⚙️ Typical Applications

  • Precision Machinery Assembly
  • Robotics and Automation Equipment
  • Electronic Enclosures and Panels
  • Metal Frameworks
  • Automotive Parts and Fixtures

Key Advantages
✔️ Countersunk design for a flush and sleek finish
✔️ High torque capacity with internal hex drive
✔️ Rust-resistant coating for extended durability
✔️ Meets international standards for interchangeability
✔️ OEM available with drawing-based customization

Grade 8.8 Hexagon Socket-head Din912 Carbon Steel 304 A4 80 Allen Bolt M3 M6 M8 M12 Stainless Steel Din 912 M10

📦 Factory Direct Supply

  • MOQ: 1,000 pcs per size
  • Delivery Time: 5–12 working days
  • Packaging: Carton + Pallet / OEM Printed Boxes
  • Exported to Europe, North America, Southeast Asia

📩 Need precision flat head screws for your machinery project?
Contact us today for free samples, drawings, or a fast quotation. We support small-batch orders, custom packaging, and global shipping.