Value Collection TCI40870300 Tension Control Bolt 7/8-9

Product Description

The VALUE COLLECTION TCI40870300 is a structural tension control bolt assembly designed for high-strength steel-to-steel connections in commercial and industrial construction. Manufactured to ASTM A490 and ASTM F2280 standards, this fastener features a 7/8-9 UNC thread and a 3-inch length under head. The assembly includes a compatible nut and washer, allowing a single-sided installation using a tension control wrench. The splined shank shears off at the calibrated installation torque, confirming proper pretension without the need for additional inspection tools. Structural ironworkers and steel erectors rely on this bolt type for beam connections, column splices, and moment frame assemblies.

This tension control bolt is used in structural steel construction where high-strength, pretensioned fastener assemblies are required. Typical applications include steel framing, bridge components, and industrial infrastructure where AISC or RCSC specifications govern connection design. The 7/8-9 thread size and 3-inch under-head length suit a range of standard connection plate thicknesses. Each package contains 5 complete assemblies, each including one bolt, one nut, and one washer ready for installation.

Key Features

• ASTM A490 and ASTM F2280 certified high-strength structural bolt
• 7/8-9 UNC thread for standard structural connections
• 3-inch length under head accommodates typical multi-plate connections
• Includes nut and washer — complete assembly per bolt
• Bright/uncoated finish — compatible with standard structural steel applications
• Splined tip shears at proper installation torque for built-in pretension verification

Compatibility

Designed as an OEM-style structural fastener replacement for high-strength 7/8-9 UNC tension control bolt applications conforming to ASTM A490 and ASTM F2280 specifications.

Installation Notes

Installation of tension control bolts requires a calibrated TC wrench and must be performed by qualified ironworkers following RCSC Specification for Structural Joints guidelines. Verify connection geometry and grip length requirements before selecting bolt length. Do not reuse tension control bolts once the splined tip has been sheared. Follow applicable building codes and project specifications for pretension verification procedures.