Fastener products

Donhad, a Valmont company, is recognized internationally as one of the leading manufacturers of specialized fasteners. The company’s forge operation manufactures specialized fasteners in plain carbon alloy and stainless steel for use in the mining, oil and gas, general and civil engineering industries. Donhad primarily serves the Australia, New Zealand and Southeast Asia markets.

Heat Treatment

Fastener products for mining, mills and heavy industry

All head shapes, lengths and diameters of forged products are catered for and customized for most any requirement. The company's machining, heat treatment and technical capabilities complement the forge operation to deliver technical products of high integrity.

The Donhad product range includes:
• mill liner bolts and accessories (hex nuts, nyloc nuts, recess washers, sealing washers and hole plugs)
• crusher bolts, track bolts and nuts
• mill rotating hardware - structural bolts, nuts and washers
• eye bolts
• studs
• socket head cap screws
• hex, square, rectangular and round headed bolts
• holding down or foundation bolts
• 'T' head bolts.

 All of the above are available in all grades (imperial) and all property classes (metric).