The 20-Second Trick For Tension Control Bolts - Infasco

are now the most popular option 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 authorized setup approach.  Need More Info?  consists of 1 bolt, 1 nut and 1 washer, pre-assembled and there for they are shown, 1 lot number, on the certification paperwork.

They are installed with a specialized electric shear wrench that has an external socket that turns the nut counterclockwise, while grabbing the spline with the inner socket turning it clockwise. When the proper tension level has actually been achieved the spline snaps off offering you a visual indication of appropriate setup.

Amazon.com: 3/4"-10 x 2 1/4" A325 Tension Control (TC) Bolts with A563 DH  Heavy Hex Nut and F436 Washer Plain Finish - Made in USA (Quantity: 270  pcs) : Industrial & Scientific

Tacoma Screw Products - 1"-8 x 3" Tension Control Bolt Assembly — ASTM A325  Type 1 / F1852, Coarse Thread, Plain, 10/PKG

Some Known Questions About A325 TC Bolts Galvanized - Structural Bolts - Joseph Fazzio Inc.

Because of this exclusive lubrication, it is allowable to re-lubricated TC bolts, in the field, only the manufacture of a TC bolt can re-lubricate a TC assembly. Type-1, Type-3 & Mechanical Galvanized Bolts are sometimes detailed with names such as A325 HS, A325 SC, A325 X or A490 N. These names associate with connection design and bolt installation, but do not change the manufacturing requirements and are ideally disappointed on bolt orders.