Value Collection HCI82000700-001BX Hex Head Cap Screw

Product Description

The VALUE COLLECTION HCI82000700-001BX is a heavy-duty hex head cap screw designed for high-strength fastening applications. Sized at 2-4-1/2 inches in thread diameter with a 7-inch length under the head, this fastener is manufactured from Grade 8 steel and left uncoated with a bright finish. The partial threading allows for clamping force in applications where a plain shank is required between the bearing surfaces. This screw follows the Unified National Coarse (UNC) thread standard, making it compatible with standard UNC-tapped holes and nuts. It is typically installed by millwrights, maintenance mechanics, heavy equipment technicians, and structural assembly crews.

This cap screw is suited for heavy industrial, structural, and mechanical assembly work where Grade 8 tensile strength is required. Common applications include machinery mounting, structural steel connections, heavy equipment frames, and fabricated assemblies that demand a high-strength inch-series fastener. The large 2-4-1/2 diameter and 7-inch length make this screw appropriate for thick-section clamping scenarios. It is sold individually, making it a practical option when a single replacement or spot fastener is needed on a job site or in a maintenance setting.

Key Features

• Grade 8 steel construction provides high tensile and proof load strength for demanding applications
• Partially threaded shank allows proper clamping without thread engagement through the full grip length
• UNC thread standard ensures compatibility with standard inch-series tapped holes and hardware
• Bright uncoated finish suitable for environments where additional coating is applied after installation or is not required
• Large 2-4-1/2 x 7-inch form factor built for heavy structural and mechanical assemblies

Compatibility

Designed as a standard inch-series UNC hex head cap screw for use with Grade 8-rated nuts and tapped holes conforming to 2-4-1/2 UNC thread specifications.

Installation Notes

Installation should be performed by a qualified mechanic or millwright familiar with high-strength fastener procedures. Always confirm the mating tapped hole or nut meets Grade 8 or higher specifications to avoid joint failure. Follow applicable torque specifications from an engineering reference or equipment manufacturer documentation, as no torque value is supplied with this fastener. Do not use impact tools that may damage the thread form; use calibrated torque equipment appropriate for large-diameter fasteners.