Value Collection TCB30750375USA Tension Control Bolt A325

Product Description

The VALUE COLLECTION TCB30750375USA is a tension control bolt (TC bolt) designed for structural steel connections requiring controlled, verifiable bolt pretension. Manufactured to ASTM A325 and ASTM F1852 standards from A325 grade steel with a bright, uncoated finish, this fastener features a 3/4-10 UNC thread and measures 3-3/4 inches under the head. Each unit ships complete with a compatible nut and washer. TC bolts are installed using a spline-drive tension control wrench that shears the spline tip at a calibrated torque, providing a visible confirmation of proper pretension without the need for additional inspection tools.

This bolt is suited for structural steel erection in commercial and industrial construction projects. Ironworkers, structural steel erectors, and licensed contractors working under AISC or similar structural codes use TC bolts as a direct alternative to traditional high-strength hex bolts installed by the turn-of-nut or direct-tension-indicator method. The uncoated finish is appropriate for bare steel applications where a protective coating is not specified or where the connection will be painted or encased after erection.

Key Features

• Meets ASTM A325 and ASTM F1852 structural bolt standards
• 3/4-10 UNC thread for use in standard structural bolt holes
• 3-3/4 inch length under head accommodates typical connection grip ranges
• Spline-tip design provides visual proof of proper pretension after installation
• Ships with matching nut and washer included per unit
• Bright, uncoated finish for bare or field-painted steel applications

Compatibility

Designed as an ASTM F1852-compliant tension control bolt for structural steel connections requiring 3/4-inch A325-grade high-strength fasteners with 3-3/4 inch grip length coverage.

Installation Notes

Installation requires a pneumatic or electric spline-drive TC bolt wrench matched to the 3/4-inch bolt size. Structural steel connections must be brought to a snug-tight condition before final pretensioning. Follow the applicable provisions of the AISC Steel Construction Manual and project structural drawings for required bolt pretension and inspection criteria. Do not reuse TC bolts after the spline tip has been sheared.