Value Collection TCI40870550 Tension Control Bolt 7/8-9

Product Description

The VALUE COLLECTION TCI40870550 is a structural tension control bolt designed for high-strength steel-to-steel connections in construction and fabrication applications. This bolt features a 7/8-9 UNC thread and measures 5.5 inches under the head, making it suitable for thick structural assemblies. Manufactured from A490 steel and left uncoated with a bright finish, it meets ASTM A490 and ASTM F2280 fastener standards. Each bolt ships with a nut and washer included. Structural ironworkers and steel erectors install these as part of pre-engineered connection packages where controlled pretension is required.

Tension control bolts are used in structural steel construction including building frames, bridges, and industrial structures. The twist-off spline end allows installation with a standard TC gun, eliminating the need for a torque wrench or manual calibration. This bolt is appropriate for residential and commercial structural steel applications where AISC or RCSC bolt specification compliance is required. Package quantity is 5 bolts per pack, with each pack including matching nuts and washers.

Key Features

• 7/8-9 UNC thread for standard structural bolt hole patterns
• 5.5 inches length under head for thick multi-ply or heavy plate connections
• A490 high-strength steel construction meets ASTM A490 and ASTM F2280 standards
• Bright uncoated finish suitable for painted or galvanized assemblies
• Includes nut and washer — complete fastener assembly per bolt
• Package quantity of 5 with minimum order quantity of 1 pack

Compatibility

Designed as an OEM-style structural fastener for use in high-strength bolted connections conforming to ASTM A490 and ASTM F2280 specifications.

Installation Notes

Structural ironworkers install tension control bolts using an electric or pneumatic TC bolt gun that shears the spline end when proper pretension is achieved. Before installation, verify that mating steel surfaces are free of mill scale, burrs, and excessive coatings that could affect slip resistance. Follow RCSC Specification for Structural Joints guidelines for hole preparation, bolt assembly sequence, and inspection requirements. Do not reuse TC bolts once the spline has been sheared.