The most common alternative design bolt is the twist off bolt or tension control tc bolt.
Tension control bolts fastenal.
An outer spindle on the tool turns the nut and tightens the fastener.
It is one of the most commonly used fasteners for high strength applications even preferred over large hex bolts.
Bolts are headed externally threaded fasteners used to keep two objects often metal or wood in a fixed position relative to one another.
Tension control bolts also known as tc bolts are used for high strength steel to steel fastening.
Tension control bolts have a threaded shank with a splined end that shears or twists off when the bolt is tightened.
It requires a special wrench to work with.
Tension control bolts commonly used in critical steel applications tension control bolts feature a spline that disconnects when the appropriate bolt tension is reached.
They are installed 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.
The tension control bolt consists of a three piece fastening system with 1 a round head bolt with a truncated flat surface area at the top of the bolt and a 24 sided tip which protrudes from the opposite end.
Catalog view list view grid.
These tension control bolt assemblies come with nuts and washers.
The head is dome shaped and is not designed to be driven with normal tools.
Tension control bolts assemblies come with their own built in tension control device spline to ensure dependable and repeatable tension levels are achieved with each installation.
Tension control bolts are used in structural steel applications and require.
These tension control bolt assemblies come with nuts and washers.
2 a heavy hex nut and 3 a structural flat washer.
As they are made from stainless steel carbon steel or alloy steel they can be used for highly demanding high strength applications and are often preferred over large hex bolts.
An assembly tool holds this bolt from the nut end while an inner spindle on the tool grips a spline section connected to the end of the bolt.
The tip is calibrated to shear off when the proper tension is applied.
Tension control bolts ltd offer a full range of shear wrench sales hire and repair services.
Unlike screws which cut their own threads bolts pair with the internal threads of nuts to stay in place and ensure the desired level of tension in the bolted joint.
