Request a Quote
Bolts, Nuts & Thread Rod

High Tensile Bolts

High tensile bolts in grades 8.8, 10.9 and 12.9 for steel construction and building connections, M4–M30, 6mm to 300mm.

What this group is for

High tensile bolts are the one place in this catalogue where a higher number is not automatically a better answer. Strength comes at the cost of ductility and brings a hydrogen embrittlement risk into any electroplating step, so the grade and the finish have to be decided together.

  • Grades 8.8, 10.9 and 12.9
  • M4–M30, lengths 6mm–300mm
  • Specified for steel construction and building bolts
  • Zinc, black and high-performance finishes, quoted against the grade

Specification range

DiameterM0.8 – M42
Length2mm – 3000mm
StandardsJIS, ANSI, DIN, BSW, GB, ISO, BS, IFI
Property classes4.8, 5.8, 6.8, 8.8, 10.9, 12.9, A2-70, A2-80, A4-70, A4-80
Salt spray24 – 2000 hours, depending on material and finish

Ask about High Tensile Bolts

Next step

Quote this group

Tell us the size, length, head, drive, material, finish and quantity and you will get a price against it.

Email the factory +86-769-81369466 All contact details