stud tcbThe TCB Stud is used where access is restricted and returns the same preload values as standard a TCB. The left-hand threaded nut replaces the conventional bolt head; this allows the stud to be inserted into a clearance hole first and the LH nut is screwed onto the stud afterwards.

All TCB Studs from Tension Control Bolts Ltd are:

  • High strength structural bolting assemblies for preloading, System HRC
  • Property class 10.9/10
  • Manufactured in accordance with EN 14399-10
  • CE and UKCA marked in accordance with EN 14399-1
  • Supplied with superior corrosion protection Greenkote®
  • Supplied as a TCB Stud assembly, comprised of 1x stud, 1x right-hand threaded Nut, 1x left-hand threaded nut and 1x washer
  • Available in M16, M20, M22, M24, M27, M30 & M36 diameters in specific lengths 

TCB Studs can be used wherever access is restricted. The stud is simply inserted through the steel and then the left-hand threaded nut (denoted with an embossed arrow on the nut) is threaded onto the left–hand threaded section of the stud. 

stud picture in useThe distinctive curved design of the steel roof from the 2012 Olympic Games Aquatic Centre utilised 20,000 TCB Studs as the design had not initially factored in access for the shear wrenches.

Further, there were space limitations; angling a dome headed bolt through a hole requires several more clearance in the web whereas TCB Studs can be inserted from above or below to suit access and facilitate installation.

In the wind energy market TCB Studs have been incorporated into new bolted shell tower designs for leading manufacturers Siemens Gamesa and Lagerwey, and TCB Studs are also frequently used in high rise and rail applications.

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Greenkote® anti-corrosion protection

Tension Control Bolts Ltd has its own metal coating plant producing an environmentally friendly anti-corrosion coating called Greenkote, which is comparable to galvanising, although it is harder wearing and readily accepts all paint systems. Learn more about Greenkote.