As early as the 1960's, we were adding innovation to the fastener industry, supplying high strength friction grip fasteners. It was at that time that we designed and patented the 'Coronet' Direct Tension Indicator. This ensured correct torque tensioning for high strength bolting assemblies. This innovative, time-saving product soon established the company as the world leader in structural bolting.

Construction Fasteners Wind Turbine Bolts Rail Bolts Tunnel Bolts Cooper & Turner Ltd manufacturing Sheffield South Yorkshire
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