Products  ›  Bolts   ›  Tension Control Bolts

Tension Control Bolts

Tension Control BoltsAlso called "twist-off" bolts, A tension control bolt (TC bolt) is a heavy duty bolt used in steel frame construction. The head is usually domed and is not designed to be driven. The end of the shank has a spline on it which is engaged by a special power wrench which prevents the bolt from turning while the nut is tightened. When the appropriate torque is reached the spline shears off.

Meets ASTM A325 standards.

Available in the following finishes and sizes:
Plain, Zinc Plated, Hot Dipped Galvanized, Black Oxide, Silicone Bronze, Yellow Zinc, Aluminum, 316 SS, and 304/18-8/410 SS.


Description Description  
A325TC BOLT,5/8 X 1-1/2 A325TC BOLT,7/8 X 4 1/2  
A325TC BOLT,5/8 X 1-3/4 A325TC BOLT,7/8 X 4 3/4  
A325TC BOLT,5/8-11 X 2 A325TC BOLT,7/8-9 X 5  
A325TC BOLT,5/8-11 X 2 1/4 A325TC BOLT,7/8 X 5-1/2  
A325TC BOLT,5/8 X 2 1/2 A325TC BOLT,7/8 X 6  
A325TC BOLT,5/8-11 X 2-3/4 A325TC BOLT,1 X 2  
A325TC BOLT,5/8-11 X 3" A325TC BOLT,1 X 2 1/4  
A325TC BOLT,3/4 X 1 3/4 A325TC BOLT,1 X 2 1/2  
A325TC BOLT,3/4 X 2 A325TC BOLT,1 X 2 3/4  
A325TC BOLT,3/4 X 2 1/4 A325TC BOLT,1 X 3  
A325TC BOLT,3/4 X 2 1/2 A325TC BOLT,1 X 3 1/4  
A325TC BOLT,3/4 X 2 3/4 A325TC BOLT,1 X 3 1/2  
A325TC BOLT,3/4 X 3 A325TC BOLT,1 X 3 3/4  
A325TC BOLT,3/4 X 3 1/4 A325TC BOLT,1 X 4  
A325TC BOLT,3/4 X 3 1/2 A325TC BOLT,1-8 X 4 1/4  
A325TC BOLT,3/4 X 3 3/4 A325TC BOLT,1-8 X 4 1/2  
A325TC BOLT,3/4 X 4 A325TC BOLT,1-8 X 4 3/4  
A325TC BOLT,3/4 X 4 1/4 A325TC BOLT,1-8 X 5  
A325TC BOLT,3/4 X 4 1/2 A325TC BOLT,1 X 5-1/2  
A325TC BOLT,3/4 X 4 3/4 A325TC BOLT,1-8 x 6  
A325TC BOLT,3/4-10 X 5 A325TC BOLT,1 1/8-7 X 2 1/2  
A325TC BOLT,3/4 X 5-1/2 A325TC BOLT,1 1/8-7 X 2 3/4  
A325TC BOLT,3/4-10 X 6 A325TC BOLT,1 1/8-7 X 3  
A325TC BOLT,7/8 X 2 A325TC BOLT,1 1/8-7 X 3 1/4  
A325TC BOLT,7/8 X 2-1/4 A325TC BOLT,1-1/8-7 X 3-1/2  
A325TC BOLT,7/8 X 2-1/2 A325TC BOLT,1-1/8-7 X 3-3/4  
A325TC BOLT,7/8 X 2 3/4 A325TC BOLT,1-1/8-7 X 4  
A325TC BOLT,7/8 X 3 A325TC BOLT,1-1/8-7 X 4-1/2  
A325TC BOLT,7/8 X 3 1/4 A325TC BOLT,1-1/8-7 X 4-3/4  
A325TC BOLT,7/8 X 3 1/2 A325TC BOLT,1-1/8-7 X 5  
A325TC BOLT,7/8 X 3 3/4    
A325TC BOLT,7/8 X 4    
A325TC BOLT,7/8 X 4 1/4