Value Collection HCI20500550-025BX Hex Head Bolt 1/2-13

Product Description

The VALUE COLLECTION HCI20500550-025BX is a partially threaded hex head bolt designed for general structural and mechanical fastening applications. It features a 1/2-13 UNC thread size and a 5-1/2 inch length measured under the head. Manufactured from steel to Grade 2 material standards and certified to ASTM A307, this bolt delivers adequate tensile strength for low- to medium-stress assemblies. The bright uncoated finish leaves the steel bare, making it suitable for dry interior environments or applications where a coating will be applied after installation. Each order is sold in multiples of 25 pieces.

This bolt is commonly used in light structural connections, equipment mounting, framing, and general maintenance applications across HVAC, plumbing, electrical, and industrial service work. The 1/2-13 UNC thread is one of the most widely used fastener sizes in trade work, compatible with standard hex nuts, washers, and threaded inserts of the same thread specification. The partial threading allows for a smooth shank section near the head, which is useful when the bolt passes through clearance holes before engaging a nut or threaded receiver.

Key Features

• 1/2-13 UNC thread size for broad compatibility with standard hardware
• 5-1/2 inch length under head suits deeper stack-up assemblies
• Partially threaded design provides a smooth shank section near the head
• Grade 2 steel construction meets ASTM A307 standards for low-carbon bolt applications
• Bright uncoated finish — suitable for dry environments or post-installation coating
• Sold in minimum quantities of 25, practical for service stock and job-site supply

Compatibility

Designed for use with standard 1/2-13 UNC hex nuts, flat washers, and lock washers. Suitable as a general-purpose replacement or stock fastener in structural, mechanical, and equipment-mounting applications requiring ASTM A307 Grade 2 compliance.

Installation Notes

Installation should be performed with the appropriate 3/4 inch hex wrench or socket driver. Torque to values specified by the governing project engineer or applicable code — do not estimate torque based on bolt grade alone. In structural or load-bearing applications, consult applicable building codes before specifying Grade 2 hardware, as higher-grade fasteners may be required. Always inspect threads for damage before installation and ensure mating hardware matches the 1/2-13 UNC thread specification.