Value Collection TCI40870275 Tension Control Bolt 7/8 A490

Product Description

The VALUE COLLECTION TCI40870275 is a structural tension control bolt assembly designed for high-strength steel-to-steel connections in construction and industrial applications. Manufactured to ASTM A490 and ASTM F2280 standards, this fastener features a 7/8-9 UNC thread with a 2.75-inch length under head and a 1.625-inch head diameter. The bright, uncoated finish is standard for A490 structural bolts used in dry or protected environments. Each assembly includes a compatible nut and washer. Licensed ironworkers and structural steel erectors install these fasteners using calibrated torque tools or direct tension indicators on structural steel connections.

This tension control bolt assembly is suited for structural steel framing in commercial, industrial, and heavy civil construction. The splined-end design allows installation with standard TC bolt shear wrenches, which twist off the spline end when the required preload is reached, providing a built-in installation verification. The package includes 5 complete assemblies, making it appropriate for small-quantity field use or replenishment of on-site stock.

Key Features

• Meets ASTM A490 and ASTM F2280 structural bolt standards
• 7/8-9 UNC thread for compatibility with standard structural connections
• 2.75-inch length under head suits typical steel flange and connection plate stacking
• Bright, uncoated finish — appropriate for interior or protected structural applications
• Each set includes nut and washer for a complete installation assembly
• Splined tension control design provides visual confirmation of proper preload at installation

Compatibility

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

Installation Notes

Installation should be performed by qualified ironworkers or structural steel erectors in accordance with AISC and RCSC structural bolt specifications. Power down any adjacent electrical equipment and follow site lockout procedures before working in energized areas near the connection point. Use a calibrated TC bolt shear wrench matched to the 7/8-inch bolt diameter — the spline end will shear off at the required preload tension, confirming proper installation. Do not reuse tension control bolts once the spline has been sheared or the fastener has been previously torqued.