Value Collection 87128CH2 Hex Head Cap Screw 7/8-9 X 8 in

Product Description

The VALUE COLLECTION 87128CH2 is a partially threaded hex head cap screw sized 7/8-9 x 8 inches, manufactured from Grade 2 steel with a zinc-plated finish. It follows UNC thread standards and conforms to ASME B18.2.1 and SAE J429 specifications. The length is measured under the head at 8 inches, and the thread size is 7/8-9. This fastener is commonly installed by millwrights, maintenance mechanics, pipefitters, and general contractors in structural and mechanical assembly applications where a standard-duty hex cap screw is required.

This screw is suited for general-purpose fastening in industrial, commercial, and light structural applications. Partially threaded shanks provide clamping force and reduce thread engagement in the grip area, making them a preferred choice for bolted joint assemblies where shear load distribution matters. The zinc-plated finish provides basic corrosion resistance for indoor and light-duty outdoor environments.

Key Features

• 7/8-9 UNC thread size for broad tool and nut compatibility
• 8-inch length under head suits deep-reach bolted assemblies
• Partially threaded shank improves shear resistance in bolted joints
• Grade 2 steel construction meets SAE J429 mechanical requirements
• Zinc-plated finish provides basic corrosion resistance
• Conforms to ASME B18.2.1 dimensional standards

Compatibility

Designed as a general-purpose hex head cap screw compatible with standard 7/8-9 UNC hex nuts and washers in inch-measurement fastener assemblies.

Installation Notes

Installation is typically performed by qualified mechanics or maintenance personnel using standard 1-5/16-inch hex tooling. Ensure mating threads and bearing surfaces are clean and free of debris before assembly. Apply thread lubricant or anti-seize as required by the application and applicable standards. Always follow the torque requirements specified in the relevant engineering drawings or industry fastener standards for Grade 2 hardware.