Value Collection 99217 Hex Head Cap Screw Grade 8 Steel

Product Description

The VALUE COLLECTION 99217 is a fully threaded hex head cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. Manufactured from Grade 8 steel with no coating applied, this fastener meets ASME B18.2.1 dimensional standards. It features a 1-8 UNC thread size with a 2-1/2 inch length under head, making it suitable for heavy-duty bolted connections where elevated tensile and proof load ratings are required. Installed using standard hex sockets or wrenches, this screw is a go-to fastener for machinists, millwrights, fabricators, and maintenance technicians working with inch-series hardware.

This cap screw is suited for use in general industrial machinery, equipment frames, structural steel connections, and maintenance and repair operations requiring Grade 8 strength. Its fully threaded shank allows maximum thread engagement across the full length under head, which is advantageous in applications where a nut or threaded hole captures the entire fastener length. Sold in packages of 10, it is appropriate for both small-quantity service work and production-level fastening tasks.

Key Features

• Grade 8 steel construction provides high tensile strength and proof load capacity for demanding fastening applications
• Fully threaded shank allows complete thread engagement along the entire 2-1/2 inch length under head
• UNC (Unified National Coarse) thread form with 1-8 thread size for broad compatibility with standard inch-series nuts and tapped holes
• Uncoated finish is suitable for use in dry interior environments or where a specific coating will be applied in the field
• Meets ASME B18.2.1 dimensional standard for hex cap screws
• Sold in a package of 10 fasteners

Compatibility

Designed as a standard inch-series hex head cap screw for use with 1-8 UNC nuts, washers, and tapped holes conforming to ASME B18.2.1 dimensions in general industrial and mechanical assemblies.

Installation Notes

Installation should be performed by a qualified mechanic, millwright, or maintenance technician using a calibrated torque wrench and the appropriate hex socket or open-end wrench sized for a 1-8 fastener. De-energize or lock out equipment before installing or removing fasteners in live machinery per applicable OSHA lockout/tagout procedures. Do not substitute Grade 8 fasteners with lower-grade hardware in applications where Grade 8 strength is specified by the equipment manufacturer or structural engineer. Inspect threads for damage before installation and replace any fastener showing signs of deformation or corrosion.