Value Collection 99204 Hex Head Cap Screw 7/8-9 X 6 in Grade 8

Product Description

The VALUE COLLECTION 99204 is a partially threaded hex head cap screw sized at 7/8-9 x 6 inches, manufactured from Grade 8 steel with an uncoated finish. Grade 8 is the highest commonly used SAE fastener grade for inch-series screws, offering high tensile strength suitable for demanding structural and mechanical assemblies. The Unified National Coarse (UNC) thread form provides reliable engagement in standard tapped holes and nuts. This fastener conforms to ASME B18.2.1 and SAE J429, the governing standards for inch hex cap screw geometry and mechanical properties. Installers in mechanical, industrial, and heavy equipment applications rely on this screw where high-clamp-load connections are required.

This cap screw is suited for use in heavy-duty bolted joint applications across industrial machinery, agricultural equipment, structural steel connections, and mechanical assemblies requiring Grade 8 strength. The partial threading leaves a smooth shank section under the head, which is preferred in applications where shear loading is a factor or where the bolt passes through clearance holes before engaging threads. Package quantity is 10 pieces per unit, with a minimum order quantity of 1.

Key Features

• Grade 8 steel construction for high tensile strength in demanding bolted joints
• Partially threaded shank suitable for shear-load and clearance-hole applications
• 7/8-9 UNC thread form for compatibility with standard inch-series tapped holes and nuts
• 6-inch length under head accommodates thick structural members and deep through-bolt installations
• Uncoated finish — field-applicable coatings or platings can be added as required
• Conforms to ASME B18.2.1 and SAE J429 for dimensional and mechanical compliance

Compatibility

Designed for use with standard 7/8-9 UNC inch-series hex nuts, washers, and tapped holes conforming to ASME and SAE inch fastener standards.

Installation Notes

Installation is performed by mechanics, millwrights, or structural ironworkers using standard hex wrenches or impact tooling sized for 7/8-9 fasteners. Always verify hole clearance and thread engagement length before torquing. Follow applicable torque specifications from the equipment manufacturer or structural engineer of record for Grade 8 fasteners of this size — do not estimate. Inspect threads for damage before installation and replace any fastener showing corrosion, galling, or deformation.