Tension Control Bolts Disadvantages

It is one of the most commonly used fasteners for high strength applications even preferred over large hex bolts.

Tension control bolts disadvantages. The main advantage of twist off bolts is that they can be tightened from one side by one person although bolt installers now realize that regular hex bolts and dti s can also be installed one side one man too. Tension control bolts come perfectly pre lubricated by the manufacturer. 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. They are ready to be installed with a shear wrench.

This wrench has an inner and an outer socket. Tension control bolts also known as tc bolts are used for high strength steel to steel fastening. Tension control bolts ltd offer a full range of shear wrench sales hire and repair services. Downloads to incorporate our range of fasteners and shear wrenches into designs cad drawings technical and dimensional details along with quality certificates and installation documents are available to download.

Special wrenches are needed. Also known as tc bolts these bolts have a dome shaped head and they can t be driven using any normal tools working with tension control bolts requires a special type of wrench. The inner socket rotates the spline clockwise and the outer socket rotates the nut counterclockwise. Tension control bolts are the most commonly used fasteners for steel to steel fastening of high strength applications.

There are several disadvantages to the twist off system. Tc bolts come in limited lengths and diameters.