A325 Heavy Hex Bolts at Empire Bolt & Screw - The Facts

TC (Stress Control) bolts can be set up anywhere a basic structural bolt is utilized, and are not based on tool calibration or operator ability. The setup tool has an inner socket which engages the spline pointer of the bolt, while the external socket engages the nut. Need More Info? turns the nut relative to the bolt spline, and when the stress suffices in the fastener, the spline tip just twists-off, leaving the tightened bolt correctly installed in the connection.

A325 assemblies, ASTM F1852 & ASME B18. 2.6 Domestic made fasteners are also offered, please call your Colony representative for more information.

Stress control bolts, TC Bolts or Twist Off Bolts, have actually ended up being one of the world's most commonly utilized technique to stress high strength structural bolts, as they can be used in nearly all steelwork connections. As a high strength tension control bolt supplier, AFT uses 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".

The Basic Principles Of A325 Tension Control Bolt Assembly - Abrafast

Please contract us today with any questions on TC bolts or to ask for a quote on large amounts. We're here to help! TC bolts include a three-piece fastening system with 1) a round head bolt with a truncated, flat area at the top of the bolt, and a 24-sided pointer which extends from the opposite end.

2) a heavy hex nut and, 3) a structural flat washer. Stress Control Bolt Resources:.

are now the most popular choice in high-strength structural bolting and officially recognized by the AISC (American Institute of Steel Construction) and the RCSC (Research Study Council on Structural Connections) as an approved setup method. A Tension Control Bolts includes 1 bolt, 1 nut and 1 washer, pre-assembled and there for they are revealed, 1 lot number, on the accreditation documentation.

5/8-11 x 1-3/4 TC A325TC Tension Control Bolt with Nut and - The Facts

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. When the proper stress level has been accomplished the spline snaps off giving you a visual indication of proper installation.