Non-Standard from Blanks for Rapid Delivery
Specials Forged & Machined to Specification
Cut & Roll Threading
Secondary Operations - Turning, Milling, Drilling, Grinding

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Non-Standard & Special Fastener Manufacture

From forging special head shapes to machining and threading, Smith Bullough can provide a solution that meets both your requirements and the highest quality standards.

induction hot forging


cnc machining precision

CNC Machining

threading machine cut thread bolts



In our modern, purpose-built workshop we employ lean manufacturing principles and are able to utilise both traditional and high-technology techniques to manufacture fasteners to any customer specification.

induction heating at smith bullough
hot forged bolts

smith bullough machine shop
smith bullough machine shop
blanks - hexagon, square head, csk nib, cup square

Range of manufacture

  • Hexagon Head Bolts & Square Head Bolts
  • Cup Square Hexagon & Cup Round Hexagon
  • Csk Square Bolts / Ploughbolts
  • Square Square Hex/Holding Down Bolts
  • Cup Nib Bolts & Csk Nib Bolts
  • Indented Foundation Bolts
  • Ajax Bolts
  • T Bolts
  • Petrochemical Studbolts
  • Allthread & Engineers Studs
  • M6 (1/4") to M52 (2") Diameter.
  • Length < 900mm (36").
  • Special Head Shapes to specification

Secondary Operations

In-house secondary operations include:

  • Turning
  • Milling
  • Drilling
  • Grinding

Heat Treatment

  • Hardening & Tempering
  • Case Hardening
  • Induction Hardening
secondary operations - drilling bolts