Value Collection TCB30870325USA-005BX Tension Control Bolt

Product Description

The VALUE COLLECTION TCB30870325USA-005BX is a 7/8-9 UNC tension control bolt manufactured from A325 structural steel with a bright, uncoated finish. Tension control bolts are engineered for high-strength structural steel connections, using a splined end that shears off at a calibrated torque to confirm proper installation tension without the need for a torque wrench. Each package includes a matching nut and washer. This fastener meets ASTM A325 and ASTM F1852 standards, making it suitable for steel-to-steel structural assemblies in commercial and industrial construction. Installation is performed by ironworkers and structural steel erectors.

This tension control bolt is designed for use in structural steel framing connections where high-strength, pre-tensioned fastening is required. Common applications include beam-to-column connections, moment frames, and bolted splice plates in commercial buildings, bridges, and industrial structures. The 3-1/4 inch length under head accommodates standard structural connection stack-ups. Sold in a package of 5 with one nut and one washer per bolt included in the package.

Key Features

• 7/8-9 UNC thread size for compatibility with standard structural bolt holes
• 3-1/4 inch length under head suits typical multi-ply structural connection stack-ups
• A325 structural steel grade meets ASTM A325 and ASTM F1852 requirements
• Splined end shears at calibrated torque, confirming full pre-tension without torque wrench verification
• Bright uncoated finish for bare steel applications
• Includes matching nut and washer per bolt

Compatibility

Designed as an OEM-style replacement or direct-use fastener for standard 7/8 inch structural bolt holes in ASTM A325-specified steel connections per AISC and RCSC bolt specifications.

Installation Notes

Tension control bolts are installed by qualified ironworkers or structural steel erectors using a compatible electric tension control wrench that engages both the nut and the splined tip. The splined end shears flush when the bolt reaches the specified minimum pre-tension, serving as the installation indicator. Follow RCSC Specification for Structural Joints guidelines and applicable building code requirements for pretensioned joint installation. Inspect all mating steel surfaces and confirm proper hole alignment before installation.