Value Collection 99246 Hex Head Cap Screw Grade 8 Steel

Product Description

The VALUE COLLECTION 99246 is a hex head cap screw designed for heavy-duty fastening applications requiring high tensile strength and precise dimensional compliance. Manufactured from Grade 8 steel with an uncoated finish, this screw features a 1-1/4-7 UNC thread size and a 4-1/2 inch length under head. It is partially threaded, conforming to ASME B18.2.1 standards. Mechanics, millwrights, and maintenance technicians reach for Grade 8 hex cap screws when joint integrity under high load or vibration is the primary concern. The inch-system sizing makes it a straightforward fit for standard UNC fastener applications.

This hex head cap screw is suited for structural, machinery, and heavy equipment assembly where Grade 8 strength is specified. Typical applications include bolted connections in industrial machinery, agricultural equipment, heavy transport vehicles, and structural steel fabrication. The partially threaded shank provides a bearing surface in the joint, which helps resist shear loads. Sold in a package quantity of 2, it is appropriate for low-volume replacement or repair work where only a small quantity is needed.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• Partially threaded shank provides shear resistance and proper clamping in bolted joints
• UNC thread standard (1-1/4-7) for compatibility with standard inch-system nuts and tapped holes
• Uncoated finish suitable for use where coatings are not required or where additional plating will be applied
• Conforms to ASME B18.2.1 dimensional standards
• Length under head: 4-1/2 inches

Compatibility

Designed for use with standard UNC 1-1/4-7 inch-series hex nuts, flat washers, and tapped holes conforming to ASME and ANSI inch fastener standards.

Installation Notes

Installation should be performed by qualified mechanics or millwrights familiar with torque requirements for Grade 8 fasteners. Always use a calibrated torque wrench and follow the applicable equipment manufacturer or structural specification for proper clamp load. Ensure mating threads and seating surfaces are clean and free of debris before assembly. Do not substitute a lower-grade fastener in any application that specifies Grade 8.