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Non-Standards Are Our Standard

Non-Standard & Special Bolting Manufacture

Manufacturer of Metric & Imperial Special Fasteners

Forging & CNC Machining

The Solution To All Of Your Industrial Fastener Requirements

Hot forged, cold formed or machined bolting products, in all materials and grades and to your exact specification.

Metric & Imperial Fasteners
Metric & Imperial - BSW, BSF, UNC, UNF threadforms

Metric, BSF, BSW, BA, UNC, UNF

Large stocks of Metric & Imperial Bolts and Screws in Metric, BSW (Whitworth), BSF, BA, UNC and UNF threadforms.

Non-Standard Bolting
non-standard length fasteners

Rapid Delivery from Blanks

Smith Bullough manufacture non standard lengths and thread lengths from ex-stock blanks.

Special Bolt Manufacture
stainless steel, brass, copper, exotic alloys

Forging & Machining

Cold and hot forged special bolts, fasteners & fixings are manufactured in various materials. Machining options further extend our dimensional range and capabilities.

Specialist Fastener Manufacturing

induction hot forging


Special fastener manufacture in most materials and grades to your specification

cnc machining precision

CNC Machining

Precision manufacture, high tensile steel, stainless steel and exotics

threading machine cut thread bolts


Rapid response in all threadforms including Metric, BSW, BSF, UNC, UNF

blanks - hexagon, square head, csk nib, cup square

Rapid response in Metric, BSW, BSF, UNC, UNF

We specialise in standard imperial fasteners and non-standard metric.

Vast blank stocks ensure a rapid response in all threadforms.

BIG in Fastener Manufacturing

Metric headed parts are produced from M6 up to M64 in diameter, and up to 1000mm long.

Imperial headed parts range from 1/4″ to 2″ diameter, and up to 40″ long.

Studding can be manufactured up to 6 metres long.

large diameter bolts manufacturer
bolts in steel, stainless steel, brass, copper, super duplex

Materials – Steel, Stainless & Exotics

Smith Bullough manufacture fasteners in most materials, including:

Special Head Shapes

Special head shapes are manufactured to customer specification or drawing using induction-heated hot forging. Closely controlled temperature ensures dimensional accuracy and optimal material movement.

Tooling is designed and manufactured in-house.

manufacture of special head shapes
smith bullough warehouse

Stocks of BSW & BSF

Large stocks of Whitworth (BSW) & BSF threaded bolting product make us the established market leader in the supply of these ranges to the distribution trade.

Surface Finishes

Surface finishes are provided by approved subcontractors, and include:

  • Zinc Plating
  • Galvanising
  • Sherardising
  • Geomet
  • Delta
  • Xylan
special fasteners


Smith Bullough featured in FastFix Technology Magazine

In June 2020, Smith Bullough was featured in FastFix Technology Magazine. The article details recent…

Smith Bullough featured in Fastener & Fixing Magazine

Smith Bullough was featured in the May 2020 issue of Fastener & Fixing Magazine. The…

Supporting our key workers – Fastener manufacture continues at SB

Supporting our Key Workers With many of our customers still open for business, we recognise…

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