Value Collection 99211 Hex Head Cap Screw 7/8-9 X 10 in Grade 8

Product Description

The VALUE COLLECTION 99211 is a hex head cap screw designed for heavy-duty fastening applications requiring high tensile strength. Measuring 7/8-9 thread size with a 10-inch length under head, this fastener is manufactured from Grade 8 steel with a standard UNC thread form and partial threading along the shank. The uncoated finish makes it suitable for applications where secondary coatings or platings will be applied on-site. Grade 8 classification indicates a high-strength fastener appropriate for demanding structural and mechanical assemblies. Installation is performed with a standard hex wrench or impact driver sized for a 7/8-9 fastener head.

This cap screw is suited for industrial, mechanical, and structural applications where a long, heavy-duty fastener is required. The partial thread configuration allows the unthreaded shank to bear shear loads, making it appropriate for bolted joints, machinery frames, structural steel connections, and equipment mounting where precise load distribution is critical. It conforms to ASME B18.2.1, the standard governing inch-series hex bolts and screws, ensuring dimensional consistency across the fastener.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• 7/8-9 UNC thread size with 10-inch length under head for deep fastening applications
• Partially threaded shank to support shear load bearing in bolted joints
• Uncoated finish for compatibility with field-applied coatings or bare metal assemblies
• Conforms to ASME B18.2.1 for dimensional accuracy and interchangeability

Compatibility

Designed as an OEM-style replacement or general-use fastener compatible with any application requiring a 7/8-9 UNC hex head cap screw with a 10-inch length under head and Grade 8 steel construction.

Installation Notes

Installation should be performed by a qualified mechanic or tradesperson familiar with fastener torque specifications appropriate to Grade 8 hardware and the joint material being fastened. Always consult applicable engineering specifications or torque charts for the correct clamp load before final tightening. Inspect mating threads for damage or contamination before installation. Use a calibrated torque wrench to achieve proper preload without exceeding the fastener's proof load.