The 10-Minute Rule for Structural Detailing in Steel: A Comparative Study of

TC (Stress Control) bolts can be installed anywhere a standard structural bolt is utilized, and are not depending on tool calibration or operator ability. The installation tool has an inner socket which engages the spline pointer of the bolt, while the outer socket engages the nut. The external socket rotates the nut relative to the bolt spline, and when the stress suffices in the fastener, the spline pointer merely twists-off, leaving the tightened up bolt properly installed in the connection.

A325 assemblies, ASTM F1852 & ASME B18. 2.6 Domestic made fasteners are likewise available, please call your Colony agent for more information.

Stress control bolts, TC Bolts or Twist Off Bolts, have become one of the world's most commonly utilized technique to tension high strength structural bolts, as they can be utilized in nearly all steelwork connections. As a high strength tension control bolt supplier, AFT uses ASTM A325 and A490 TC bolts in bolt sizes ranging from 5/8" up to 1" and lengths from 1-1/2" as much as 7".

Please contract us today with any concerns on TC bolts or to request a quote on large quantities. We're here to assist! TC bolts consist of a three-piece fastening system with 1) a round head bolt with a truncated, flat surface location at the top of the bolt, and a 24-sided tip which protrudes from the opposite end.

2) a heavy hex nut and, 3) a structural flat washer. The Most Complete Run-Down :.

are now the most popular option in high-strength structural bolting and officially acknowledged by the AISC (American Institute of Steel Building) and the RCSC (Research Study Council on Structural Links) as an authorized installation method. A Stress Control Bolts consists of 1 bolt, 1 nut and 1 washer, pre-assembled and there for they are shown, 1 lot number, on the certification paperwork.

They are set up with a specialized electric shear wrench that has an outer socket that turns the nut counterclockwise, while grabbing the spline with the inner socket turning it clockwise. When the correct tension level has actually been attained the spline snaps off providing you a visual indication of correct installation.