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We would recommend installing a standard A325 or A490 heavy hex bolt in these instances. If the TC bolt must be used in a pretensioned joint, they may be installed using one of the other approved installation techniques. When this is done, your inspector should sign off on the installation and the tip should not be removed by some other means (i.e. cutting, torching, hammering). In snug tight connections, the fastener may be tightened using a spud wrench or impact wrench.

SG Shear Wrench Information

Yes. Tension Control Bolts have been used for many years in bridge construction. Appoximately 1/2 of the nations DOT’s have approved the use of TC’s for regular use and many others have given conditional use approval for specific projects. Bridge projects typically require a mechanically galvanized or weathering steel (Type 3) fastener. Both of these types are available as F1852 (A325) tension control bolts.

SG Shear Wrench Information

We would recommend installing a standard A325 or A490 heavy hex bolt in these instances. If the TC bolt must be used in a pretensioned joint, they may be installed using one of the other approved installation techniques. When this is done, your inspector should sign off on the installation and the tip should not be removed by some other means (i.e. cutting, torching, hammering). In snug tight connections, the fastener may be tightened using a spud wrench or impact wrench.

Clean-Lube Nut Information

Yes. Tension Control Bolts have been used for many years in bridge construction. Appoximately 1/2 of the nations DOT’s have approved the use of TC’s for regular use and many others have given conditional use approval for specific projects. Bridge projects typically require a mechanically galvanized or weathering steel (Type 3) fastener. Both of these types are available as F1852 (A325) tension control bolts.

Clean-Lube Nut Information

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