Tension Control Bolts, TC Bolts or Twist Off Bolts are now the most popular choice in high-strength structural bolting and formally recognized by the AISC (American Institute of Steel Construction) and the RCSC (Research Council on Structural Connections) as an approved installation method.

Transform your steelwork connections with Tension Control Bolts, also known as TC Bolts or Twist Off Bolts. These bolts have emerged as a global frontrunner in tensioning high-strength structural bolts, finding extensive application in diverse steelwork projects.

Tension control bolts, also known as TC bolts or twist-off bolts, are high-strength fasteners designed for steel connections. They enhance structural integrity and ensure long-lasting performance. These bolts come as a complete fastener assembly, including a nut and washer, streamlining installation and reducing labor costs.

The combination of superior tensile strength together with phenomenal ductility result in a universal bolt that can be employed in almost all steelwork connections. Efficient, safe, and easy install, TCBs are corrosion resistant and eco-friendly fasteners.

AFT Fasteners provides a helpful resource on tension control bolts dimensions and specifications including diameter, thread length, material, hardness, proof load, yield strength and tensile strength.

This method usually defaults to "twist-off" bolts, sometimes called "tension-control" or TC bolts. These assemblies’ function by calibrating the torque needed to twist off a splined extension manufactured into the bolt shank.

Jun 5, 2019 · A tension control bolt is a pre-assembled bolt, nut, and washer used especially in steel frame construction. Also known as a TC bolt, they possess a domed head rather than a hex head because they are installed from a spline on their other end.

Tension Control Bolts (TC Bolts) revolutionize the world of structural fasteners with their ingenious design and enhanced functionality. Composed of a bolt, nut, and washer, these bolts come pre-assembled, saving valuable installation time.

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Tension control bolts (TC bolts) are specialized high-strength bolts designed to provide a precise amount of tension during installation. This controlled tension is beneficial in critical applications where the bolt must withstand high loads or where the loosening of the bolt could be dangerous.