Value Collection TCI40870400 Tension Control Bolt 7/8-9

Product Description

The VALUE COLLECTION TCI40870400 is a structural tension control bolt designed for high-strength steel-to-steel connections in construction and industrial applications. This bolt meets ASTM A490 and ASTM F2280 standards and features a 7/8-9 UNC thread with a 4-inch length under head. The 1-5/8-inch head diameter and included nut and washer make this a complete fastener assembly. It arrives with a bright uncoated finish, making it suitable for use where a galvanized or coated fastener is not required. Licensed structural ironworkers and steel erectors are the primary installers of this fastener type.

This tension control bolt is used in structural steel connections where high-strength fasteners are required by design specification. Typical applications include beam-to-column connections, moment frames, and shear tab assemblies in commercial and industrial steel construction. The ASTM A490 material grade makes it appropriate for heavy structural loads. Each package contains 5 complete bolt assemblies, each including a nut and washer. The inch measurement system and UNC thread standard make this compatible with standard structural steel fabrication practices.

Key Features

• ASTM A490 and ASTM F2280 compliant high-strength structural bolt
• 7/8-9 UNC thread with 4-inch length under head
• 1-5/8-inch head diameter for standard structural washer seating
• Bright uncoated finish for unpainted or field-painted structural steel applications
• Includes nut and washer — complete fastener assembly per bolt
• Package quantity of 5 with a minimum order quantity of 1

Compatibility

Designed as an ASTM A490 and ASTM F2280 compliant tension control bolt for structural steel connections requiring 7/8-9 UNC high-strength fasteners per applicable engineering specifications.

Installation Notes

Installation of ASTM A490 tension control bolts must be performed by qualified structural ironworkers or licensed contractors in accordance with AISC and RCSC bolt installation specifications. De-energize and lock out any nearby electrical hazards before working in the connection zone. Tension control bolts are installed using a shear-wrench tool that spalls the spline end when proper pretension is achieved — do not substitute standard impact wrenches without confirming pretension requirements. Inspect installed assemblies for proper nut engagement and washer placement per project specifications before final inspection.