Value Collection TCB31000250 Tension Control Bolt A325

Product Description

The VALUE COLLECTION TCB31000250 is a structural tension control bolt designed for high-strength steel-to-steel connections in construction and fabrication applications. This fastener features a 1-8 UNC thread, a 2.5-inch length under head, and a 1.875-inch head diameter. Manufactured from A325 steel with a bright uncoated finish, it meets ASTM A325 and ASTM F1852 standards. Each unit ships as a complete assembly including a nut and washer, making it ready for direct installation without sourcing additional components. Licensed ironworkers and structural steel contractors are the primary installers of this fastener type.

This tension control bolt is used in structural steel connections in commercial and industrial construction, steel bridges, and heavy fabrication projects. The splined shear-type end allows for installation with a TC wrench, eliminating the need for torque measurement and ensuring consistent pretension. It is suited for applications where AISC and RCSC specification compliance is required for bolted structural joints.

Key Features

• 1-8 UNC thread for standard structural bolt hole patterns
• 2.5-inch length under head accommodates typical multi-ply steel connections
• A325 steel construction meets ASTM A325 and ASTM F1852 requirements
• Bright uncoated finish for use in dry or protected structural environments
• Includes nut and washer for complete single-assembly installation
• Splined shear-type design enables consistent pretension without torque measurement

Compatibility

Designed as an OEM-style structural fastener for use in standard 1-inch diameter bolt holes in ASTM A325-compliant bolted steel connections.

Installation Notes

Installation should be performed by qualified ironworkers or structural steel contractors in accordance with RCSC Specification for Structural Joints requirements. Power down any adjacent electrical equipment and follow applicable jobsite lockout procedures before working in steel framing bays. A TC wrench is required to shear the splined end, confirming proper pretension has been achieved. Do not reuse tension control bolts once the spline has been sheared.