1x2-1/4 A325 TC BOLT ASSY TENSION CONTROL, PLAIN - The Facts

TC (Tension Control) bolts can be installed anywhere a basic structural bolt is used, and are not based on tool calibration or operator ability. The installation tool has an inner socket which engages the spline idea of the bolt, while the outer socket engages the nut. The external socket turns the nut relative to the bolt spline, and when the stress suffices in the fastener, the spline pointer simply twists-off, leaving the tightened bolt correctly installed in the connection.

A325 assemblies, ASTM F1852 & ASME B18. 2.6 Domestic made fasteners are likewise offered, please contact your Nest representative for more details.

Stress control bolts, TC Bolts or Twist Off Bolts, have turned into one of the world's most widely used technique to tension high strength structural bolts, as they can be used in nearly all steelwork connections. As a high strength tension control bolt supplier, AFT provides ASTM A325 and A490 TC bolts in bolt sizes varying from 5/8" as much as 1" and lengths from 1-1/2" approximately 7".

Please contract us today with any questions on TC bolts or to ask for a quote on big quantities. We're here to assist! TC bolts consist of a three-piece attachment system with 1) a round head bolt with a truncated, flat area at the top of the bolt, and a 24-sided pointer which protrudes from the opposite end.

2) a heavy hex nut and, 3) a structural flat washer. Another Point of View :.

are now the most popular choice in high-strength structural bolting and formally recognized by the AISC (American Institute of Steel Building) and the RCSC (Research Study Council on Structural Links) as an authorized installation method. A Tension Control Bolts consists of 1 bolt, 1 nut and 1 washer, pre-assembled and there for they are revealed, 1 lot number, on the accreditation paperwork.

They are installed with a specialized electrical shear wrench that has an external socket that turns the nut counterclockwise, while getting the spline with the inner socket turning it clockwise. When the proper tension level has been attained the spline snaps off giving you a visual sign of appropriate setup.