Value Collection TCI41000425 Tension Control Bolt A490

Product Description

The VALUE COLLECTION TCI41000425 is a structural tension control bolt engineered for high-strength steel-to-steel connections in construction and industrial applications. This bolt features a 1-8 UNC thread, a 4-1/4-inch length under the head, and a 1-7/8-inch head diameter. Manufactured from A490 steel with a bright, uncoated finish, it meets ASTM A490 and ASTM F2280 fastener standards. Each package includes the bolt, nut, and washer. The tension control design allows installation crews to achieve the required clamp force without torque wrenches, using a standard shear-wrench tool that snaps off the splined end when proper tension is reached.

This bolt is used in structural steel erection for commercial, industrial, and heavy construction projects. It is suited for moment connections, shear connections, and other bolted steel frame assemblies requiring ASTM A490-grade hardware. Licensed ironworkers and structural contractors install these bolts in applications governed by AISC and RCSC specification requirements. The included nut and washer ensure a complete connection assembly out of the package, reducing field component staging.

Key Features

• ASTM A490 and ASTM F2280 compliant for structural bolt applications
• 1-8 UNC thread with 4-1/4-inch length under head suits common structural steel thicknesses
• Tension control spline-drive design eliminates need for torque wrench verification
• Bright uncoated finish for bare steel structural connections
• Includes matching nut and washer for complete connection assembly
• Package quantity of 5 supports small-lot ordering and field replenishment

Compatibility

Designed as an OEM-style structural fastener for bolted steel connections requiring ASTM A490-grade, 1-8 UNC tension control bolt assemblies in accordance with AISC and RCSC installation specifications.

Installation Notes

Installation must be performed by qualified ironworkers or structural steel contractors following RCSC Specification for Structural Joints requirements. Use a calibrated shear-wrench tool matched to the bolt diameter — the splined end shears off when the required pretension is achieved. Inspect all mating steel surfaces for burrs or gaps before assembly. Do not reuse tension control bolts once the spline has been sheared.