Value Collection 451029BR Hex Head Cap Screw Grade 8

Product Description

The VALUE COLLECTION 451029BR is a fully threaded hex head cap screw designed for high-strength bolted connections in industrial, mechanical, and structural applications. Sized at 1-1/4-7 UNC thread by 3-1/2 inches under the head, this fastener is manufactured from Grade 8 steel with a bright, uncoated finish. Grade 8 is the highest commonly available SAE inch-series bolt strength grade, making this screw appropriate for joints that see significant tensile and shear loading. It conforms to ASME B18.2.1, the standard governing the dimensional requirements for hex cap screws in inch series. This part ships individually and requires no minimum order beyond a single unit.

This cap screw is suited for heavy equipment assembly, agricultural machinery, construction equipment, industrial fabrication, and general maintenance work where a large-diameter, high-strength fastener is needed. The fully threaded shank allows engagement along the entire grip length, which can be useful when threading into blind holes or when maximum thread engagement is required. The 1-11/16-inch hex key size is compatible with standard heavy-hex socket and open-end wrenches commonly found in trade toolkits.

Key Features

• Grade 8 steel construction for high tensile strength in demanding load applications
• Fully threaded shank provides maximum thread engagement over the entire 3-1/2-inch length
• 1-1/4-7 UNC thread form meets ASME B18.2.1 dimensional standards
• Bright uncoated finish — no plating, suitable for use where coatings may interfere with tolerances or galvanic concerns are managed separately
• 1-11/16-inch hex drive compatible with standard heavy-duty sockets and wrenches
• Single-unit packaging with no minimum order requirement

Compatibility

Designed as a standard inch-series hex head cap screw for use in any application requiring a 1-1/4-7 UNC fully threaded fastener conforming to ASME B18.2.1.

Installation Notes

Installation is typically performed by millwrights, ironworkers, heavy equipment technicians, or maintenance mechanics using a torque wrench and appropriate heavy-hex socket. Ensure the mating threads are clean and free of debris before installation. Grade 8 fasteners should not be substituted with lower-grade hardware in joints engineered for this strength class. Follow the applicable engineering specification or equipment service manual for proper torque procedure.