Rumored Buzz on Tension Control Bolt, Nut and Washer Assemblies - Structural

Tension control bolts, TC Bolts or Twist Off Bolts, have turned into one of the world's most extensively utilized approach to stress high strength structural bolts, as they can be used in practically all steelwork connections. As a high strength tension control bolt supplier, AFT offers ASTM A325 and A490 TC bolts in bolt sizes varying from 5/8" as much as 1" and lengths from 1-1/2" approximately 7".

Please contract us today with any concerns on TC bolts or to request a quote on big 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 pointer which protrudes from the opposite end.

2) a heavy hex nut and, 3) a structural flat washer. Stress Control Bolt Resources:.

A tension control bolt is a pre-assembled bolt, nut, and washer utilized particularly in steel frame building. Also called a TC bolt, they possess a domed head instead of a hex head since they are installed from a spline on their other end. Click Here For Additional Info with an unique power wrench for installation.

Tension control bolts come perfectly pre-lubricated by the manufacturer. They are prepared to be set up with a shear wrench. This wrench has an inner and an external socket. The inner socket rotates the spline clockwise and the external socket turns the nut counterclockwise. Once the correct stress has been achieved, the spline breaks off.

There is just one lot number included in the tension control bolt assembly and they come precisely lubed. They are regulated by the AISC, American Institute of Steel Building, and RCSC, Research Study Council on Structural Links. The single most special function of the tension control bolt is that it is installed with an exactly adjusted shear wrench that takes the uncertainty out of accomplishing the proper preload (stress developed in a fastener when it is tightened up).

Numerous feel that tension control bolts are more economical since they need only one individual for their setup and examination. For that reason, installation goes much faster and with less errors. Tension control bolts should abide by specifications listed by the RCSC, as discussed before and any degradation of the lubricant on the bolt will cause it to stop working evaluation.