Forged Products

Donhad’s Forge Division is recognised internationally as one of the world’s leading manufacturers of specialised fasteners. It manufactures specialised fasteners in plain carbon alloy and stainless steel for use in the mining, oil, and gas, general and civil engineering industries.

All head shapes, lengths, and diameters of forged products are catered for and customised for any requirement. Our machining, heat treatment and technical capabilities complement the forge operation to deliver technical products of the highest integrity.


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We manufacture any batch size and customised designs to suit customer’s needs. Donhad houses its own design and drafting team, which includes AutoCAD™, and Solidworks™ 3D capabilities. Complemented by our in-house technical service team, R&D is one of Donhad’s core competencies.

Equipment includes:

  • 1 – 3 stage 2” Upset forging machine
  • 1 – 4 stage 3” Upset forging machine
  • 1 – 4 stage 4” Upset forging machine
  • Roll Threaders
  • CNC Lathes
  • Milling machines
  • Manual lathes
  • Robotic grinding applications.

Raw materials forged include:

  • Carbon steels
  • Alloy steels
  • Stainless steels
  • Sizes ranging from 16mm – 80mm


Additional information can be found in these Technical Bulletins:


Heat Treatment

Donhad’s Heat Treatment facilities cover internal manufacturing process and also have excess capacity for external works and contracts. Our technical services laboratory complements our heat treatment plant, enabling the testing of material properties on site to ensure compliance before despatch.




Click on these following links to find out more about our heat treatment services, including furnace capacities.


Mill Liner & Crusher Bolt

We are recognised internationally as one of the world’s leading manufacturers of specialised fasteners for the mining industry. Specific design, tension, and optimal head seating are critical components to reduce mill shut down risk. Our product line includes: Oval head...

Easy Release Bolt

The Easy Release Liner Bolt is manufactured under patent. This unique product is designed to reduce removal time through the mechanical requirement of pushing thread through worn liners. This product also reduces the risk of damage to the outer shell...

Easy-Out Bolt

Our Donhad patented Easy-Out Bolts are designed to reduce the potential for personal injury, damage to equipment and shorten liner change-out times. These Easy-Out Bolts design consists of a standard liner bolt which has been modified to be used in...

Structural Fasteners

Donhad structural fasteners are manufactured to the highest quality. Our own heat treatment facility and technical services department, combined with fully equipped operational capabilities, ensure all customer stringent quality standards are maintained internally. Our customised design capability means we...

Twistlock Pins

Donhad Twistlock Pins are manufactured with the finest of detail and provide complete material composition certainty. The nature of the lifting role of twist lock pins, within shipping containers and mobile plant lifting equipment, commands the highest of structural...