Value Collection TCB31000500 Tension Control Bolt A325

Product Description

The VALUE COLLECTION TCB31000500 is a structural tension control bolt designed for high-strength steel-to-steel connections in commercial and industrial construction. The fastener uses a splined end that shears off at a calibrated torque, confirming that the required clamping force has been achieved without a torque wrench. It is supplied as a complete assembly that includes the bolt, a compatible nut, and a hardened washer. The bolt is manufactured from A325 steel with a bright uncoated finish and conforms to ASTM A325 and ASTM F1852 standards. Licensed ironworkers and structural steel erectors are the primary installers of this fastener.

This tension control bolt is intended for use in structural steel framing applications including building frames, bridges, and heavy equipment platforms where pre-tensioned high-strength bolted joints are required by design specification. The 1-8 UNC thread and 5-inch length under head make it suited for medium to heavy plate and flange connections. It is packaged in a quantity of five units per package, which is standard for jobsite use where small quantities are needed for completion work or repair.

Key Features

• Splined shear end provides a positive visual confirmation of proper pre-tension without a torque wrench
• Meets ASTM A325 and ASTM F1852 standards for structural bolting applications
• A325 steel construction delivers the high clamping force required in structural connections
• Bright uncoated finish for use in dry or protected interior steel environments
• Complete assembly includes bolt, nut, and hardened washer for single-source procurement
• Packaged in quantities of five per package with a minimum order of one package

Compatibility

Designed as an ASTM A325 and ASTM F1852 compliant tension control bolt for structural steel connections requiring 1-8 UNC thread and a 5-inch length under head.

Installation Notes

Installation must be performed by qualified ironworkers or structural steel erectors following AISC and RCSC specification requirements for pre-tensioned bolted joints. Use a TC wrench (tension control installation tool) to drive the bolt until the splined end shears, which confirms minimum pre-tension has been achieved. Inspect each sheared spline after installation as required by the project inspection plan. Do not reuse tension control bolts that have had their spline sheared or that have been field modified.