Value Collection TCI41000300 Tension Control Bolt A490

Product Description

The VALUE COLLECTION TCI41000300 is a structural tension control bolt designed for high-strength steel-to-steel connections in construction and heavy fabrication applications. Built to ASTM A490 and ASTM F2280 standards, this bolt features a 1-8 UNC thread size and a 3-inch length under head measurement. The splined end shears off at a calibrated torque during installation, confirming the fastener has reached the required pretension without the need for additional torque verification tools. Each package includes the bolt, a compatible nut, and a washer. Licensed structural ironworkers and steel erectors are the primary installers. The bright, uncoated finish is standard for this fastener grade.

Tension control bolts in this size and grade are used in structural steel framing, beam-to-column connections, moment frames, and bolted steel splices in both commercial and industrial construction. The 1-inch diameter, 1-8 UNC thread pattern is a common structural fastener size specified by engineers on projects governed by AISC and RCSC connection standards. This SKU is sold in a package quantity of 5, making it suitable for small repairs, sample procurement, or supplemental fastening in larger assemblies.

Key Features

• ASTM A490 and ASTM F2280 certified for high-strength structural applications
• Splined shear-type installation confirms pretension without torque wrenches
• 1-8 UNC thread with 3-inch length under head measurement
• 1-7/8 inch head diameter for full bearing on standard structural holes
• Includes matching nut and washer in each package
• Bright uncoated finish meets standard bare steel connection requirements

Compatibility

Designed as an OEM-style structural replacement fastener for high-strength bolted steel connections requiring ASTM A490 tension control assemblies in 1-inch diameter UNC configurations.

Installation Notes

Installation requires a tension control electric wrench fitted with the correct socket and reaction arm for this bolt diameter. All structural steel connections must comply with AISC 360 and RCSC Specification for Structural Joints Using High-Strength Bolts. Do not reuse tension control bolts once the splined end has sheared, as pretension cannot be verified or re-established. Confirm faying surface condition and hole alignment before seating the assembly.