DIN EN~14399 4 High Strength H.V. Hex Structural Bolt, Nut & Washer Assembly by Material, Finish and Size

Heavy Hex Structural bolts are designed for high-strength steel to steel structural connections. Dimensionally, hex structural bolts are covered by the ASME B18.2.6 standard, and the material specifications are now covered by ASTM F3125 which replaced ASTM A325 and A490. In metric use, structural bolts are covered by DIN 6914, DIN EN 14399-4, ISO 7412 and material Classes 8.8 and 10.9.

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Structural bolts have a high strength steel and are used in structural steelwork with high strength nuts and hardened steel washers. When they are tightened to a given minimum shank tension they are often abbreviated to HSFG (high strength friction grip) bolts. These bolts are usually short and have a heavy, large head, which helps to distribute load effectively. The head of the heavy hex structural bolt is specified to be the same size as the heavy hex nut of the same nominal diameter, allowing the bolt head and nut to be accessed with the same size wrench or socket.
Common applications of Structural Bolts are:

  • • Agricultural
  • • Automotive
  • • Construction
  • • Heavy Machinery
  • • Marine
  • • Mining
  • • Nuclear
  • • Oil & Gas
  • • Petroleum
  • • Boilers
  • • Bridges
DIN EN 14399-4 Structural Bolts by Metric Sizes

Structural Bolts are available on the FCH Network with metric diameters that range from M12 to M30, and with metric lengths that range from 30mm to 190mm.

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DIN EN 14399-4 Structural Bolts by Materials

DIN EN 14399-4 Structural Bolts are available on the FCH Network in materials that range from Class 10.9 to Class 10.9.

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DIN EN 14399-4 Structural Bolts by Coatings/Finishes

DIN EN 14399-4 Structural Bolts are available on the FCH Network in finishes or coatings that range from Plain to Black Oxide.

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