Value Collection HCI82000950 Hex Cap Screw Grade 8

Product Description

The VALUE COLLECTION HCI82000950 is a heavy-duty hex head cap screw designed for high-strength bolted assemblies. Manufactured from Grade 8 steel with a bright uncoated finish, this fastener delivers the tensile strength required in demanding structural and mechanical applications. The screw measures 9-1/2 inches in length under the head with a 2-4-1/2 inch thread size per the Unified National Coarse (UNC) standard. It is partially threaded, making it well suited for applications where a full-grip shank is needed to prevent joint slippage under heavy load. Installers in mechanical, structural, and industrial trades rely on Grade 8 fasteners like this one where SAE-grade strength is specified.

This cap screw is used in heavy equipment assembly, structural steel connections, industrial machinery mounting, and general fabrication work requiring UNC-threaded, large-diameter hardware. Its partial threading supports clamping force across thick material stacks without thread engagement in the grip zone. Mechanical contractors, millwrights, and industrial maintenance technicians are the primary installers. The bright uncoated finish suits indoor or protected environments where corrosion exposure is minimal.

Key Features

• Grade 8 steel construction for high tensile and proof-load strength
• Partial threading provides a full-grip shank zone for clamping heavy assemblies
• UNC thread standard ensures broad compatibility with standard inch-series nuts and tapped holes
• Bright uncoated finish suitable for controlled or indoor environments
• Large 2-4-1/2 inch thread size designed for heavy structural and industrial load applications
• Length under head measured at 9-1/2 inches for use with thick material stacks

Compatibility

Designed for use with standard UNC-threaded nuts and tapped holes in inch-measurement systems requiring a 2-4-1/2 thread size and Grade 8 strength rating.

Installation Notes

Installation should be performed by qualified mechanical, structural, or industrial maintenance technicians familiar with high-strength fastener procedures. Always confirm that mating nuts or tapped holes conform to UNC thread standards at the specified diameter before installation. De-energize and lock out any equipment before fastener work begins on live machinery. Do not exceed the rated proof load; consult applicable torque tables for Grade 8 UNC fasteners at this diameter when engineering specifications are required.