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Non-Standards Are Our Standard

Carbon & Alloy Steels

Here at Smith Bullough, we offer bolts and fasteners manufactured in carbon & alloy steels with short production lead times.

Fasteners Manufactured in Carbon & Alloy Steels

In our in-house manufacturing department, fasteners can be produced from grades 4.6 to 14.9 in Metric, and R, S, T, V and SAE8 in Imperial.

We hold extensive stocks of semi-finished blanks in stock to ensure a rapid turnaround.

Steel TypeMaterialGrade
Mild Steel230M07 / ENIA4.6
Carbon Steel080M40 / EN85.6 / 8.8
Alloy605M36 / EN168.8 / R / S
Alloy709M40 / EN19 / 4140 / B7, L710.9 / 12.9 / V
Alloy817M40 / EN24 / 434014.9 / X

The grade achievable from a material is determined by the diameter ruling section. Contact Smith Bullough sales with your requirements for an accurate assessment.


Smith Bullough manufactures a wide variety of carbon & alloy steel bolts and fasteners on site in our purpose-built machine shop. Whatever your requirements, we will have the appropriate solution. Products include:

  • Hexagon bolts and set screws
  • Stud bolts
  • Engineer studs
  • Socket cap screws
  • Socket set screws
  • Socket countersunk screws
  • Nuts
  • Washers
  • Machined parts
  • Specials to drawing

Contact The Experts

For more information or to discuss an order, contact Smith Bullough today.

Call us on 01942 520 250 for a free, no-obligation quotation.

Get in Touch