Value Collection TCI40870350 Tension Control Bolt 7/8-9

Product Description

The VALUE COLLECTION TCI40870350 is a structural tension control bolt engineered for high-strength steel-to-steel connections in construction and fabrication applications. It features a 7/8-9 UNC thread form and measures 3-1/2 inches under the head. Built to ASTM A490 and ASTM F2280 standards, this bolt delivers the high clamp load required for structural steel assemblies. Each package includes a matching nut and washer, allowing the installer to complete the bolt group without sourcing additional components. The uncoated, bright finish leaves the fastener ready for field installation as-received.

This tension control bolt is used in structural steel framing, beam-to-column connections, and moment frame assemblies common in commercial and industrial construction. The splined shear-type end of a TC bolt assembly allows installation with a standard TC impact wrench, which shears the spline tip at the correct tension. Ironworkers and structural steel erectors are the primary installers. Each package contains 5 bolt assemblies.

Key Features

• 7/8-9 UNC thread size for standard structural bolt hole patterns
• 3-1/2 inch length under head accommodates common steel stack thicknesses
• ASTM A490 and ASTM F2280 certified for structural high-strength applications
• Bright uncoated finish — no coating removal required before inspection
• Includes nut and washer — complete bolt group in one package
• Package quantity of 5 suits small repairs and single-connection jobs

Compatibility

Designed for use in structural steel connections requiring ASTM A490 high-strength tension control bolt assemblies with 7/8-9 UNC thread. Consult project drawings and the engineer of record to confirm bolt length and grade specifications before installation.

Installation Notes

Installation is performed by qualified ironworkers using a calibrated TC impact wrench; the splined tip shears when the bolt reaches the required pretension, providing a visual confirmation of proper installation. Follow AISC and RCSC specification requirements for snug-tight sequencing and pretensioning procedures. Do not reuse tension control bolts once the spline tip has been sheared. Store bolt assemblies in a dry location and protect from corrosion prior to installation.