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Square Head Bolts

Bolt King is a UK Manufacturer of Square Head Bolts. We typically supply Square Head Bolts in to the Petro-Chemical and Construction Industries. We can offered hot forged Square Head Bolts from M6 - M48, and CNC bar-turned products from M4 - M200. We manufacture to International Standards, as well as customer's drawings. As well as standard Alloy and Stainless steels, we love working with the exotics, including Inconel, Super Duplex, Titanium and many more.

Square Head Bolts at Bolt King

Common Standards Include:

  • DIN 478
  • ANSI B18.2.1
  • ASME B18.2.1
  • BS 2708

Common Standards Thread Forms:

  • Metric / Metric Fine
  • UNC / UNF / UNS
  • BSF / BSW

Typical Grades:

  • ISO 898-1 8.8 / 10.9 / 12.9
  • Stainless Steel 303/304 / 316 / 321 / 347
  • Petrochemical B7 / L7 / B16 / B8 / B8M
  • Super Duplex S32760 / F55 / F53
  • INCONEL 600 / 625 / 718 / 800 / 925

Special Fasteners In Exotic Alloys, Including
Inconel & Super Duplex