Value Collection HCI20310062-100BX Hex Head Bolt 5/16-18

Product Description

The VALUE COLLECTION HCI20310062-100BX is a fully threaded hex head bolt designed for general-purpose fastening in structural and mechanical assemblies. Manufactured from Grade 2 steel with a bright uncoated finish, this bolt carries a 5/16-18 UNC thread and measures 5/8 inches in length under the head. It meets ASTM A307 standards, making it suitable for low-carbon steel fastener applications across a wide range of trades. Sold in a box of 100, it is a practical stocking item for contractors, maintenance technicians, and fabricators who require consistent, spec-compliant fasteners in volume.

This bolt is appropriate for residential and light commercial construction, equipment assembly, HVAC equipment mounting, plumbing fixture support, and general mechanical work where ASTM A307 Grade 2 fasteners are specified. The 5/16-18 UNC thread is one of the most common coarse-thread sizes in the inch fastener system, fitting standard hex nuts, lock nuts, and threaded inserts of the same designation. The uncoated finish suits indoor and dry-location applications or situations where a plated or coated finish is not required by the specification.

Key Features

• 5/16-18 UNC coarse thread for broad compatibility with standard hardware
• 5/8 inch length under head - fully threaded along the entire shank
• Grade 2 steel construction meets ASTM A307 fastener standard
• Bright uncoated finish - no added plating or coating
• Sold in a box of 100 for jobsite and shop stocking
• Inch measurement system - fits standard SAE tooling and hardware

Compatibility

Designed for use with 5/16-18 UNC hex nuts, coupling nuts, and threaded inserts in applications where ASTM A307 Grade 2 uncoated steel fasteners are acceptable per the project specification.

Installation Notes

Install using a standard 1/2 inch hex wrench or socket driver. Torque to the value specified by the application engineer or relevant structural code - do not substitute published generic torque tables for engineered connections without authorization. For applications subject to vibration, a locking nut or thread-locking method appropriate to the assembly should be specified. Verify that the mating thread, nut grade, and finish are compatible with the service environment before installation.