Value Collection 451127BR Hex Cap Screw 5/8-11 X 9-1/2 Grade 8

Product Description

The VALUE COLLECTION 451127BR is a Grade 8 steel hex head cap screw with a 5/8-11 UNC thread and a 9-1/2 inch length under the head. Partially threaded for applications requiring a strong unthreaded shank section, this fastener meets ASME B18.2.1 dimensional standards. The bright, uncoated finish is suited for indoor mechanical assemblies or applications where a secondary coating will be applied. Weighing 0.86 pounds, this heavy-duty screw is appropriate for high-strength structural and mechanical fastening tasks across industrial and trade settings.

This fastener is used wherever Grade 8 tensile strength is required in inch-series bolted connections. Typical applications include heavy equipment assembly, steel fabrication, agricultural machinery, and general industrial structural work. The partial threading design provides a smooth shank bearing surface in the joint, making it well suited for joints where shear load transfer through the bolt body is a factor. Maintenance technicians, millwrights, and field service personnel working with UNC-threaded hardware will find this fastener appropriate for replacement or new construction work.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• 5/8-11 UNC thread form for wide compatibility with standard inch-series nuts and tapped holes
• Partially threaded shank provides a smooth bearing surface for shear-loaded joints
• Bright, uncoated finish suitable for painting, plating, or use as-received in dry environments
• Meets ASME B18.2.1 dimensional and tolerance standards
• Hex key drive size of 5/16 inch for installation and removal tooling reference

Compatibility

Designed for use with standard 5/8-11 UNC inch-series nuts, washers, and tapped holes in Grade 8 or equivalent fastener applications.

Installation Notes

Installation should be performed by qualified mechanical or maintenance personnel using calibrated torque tooling appropriate for Grade 8 fasteners of this diameter. Always ensure mating threads are clean and free of debris before assembly. Refer to applicable torque specification tables for 5/8-11 Grade 8 fasteners as provided by the equipment manufacturer or relevant industry standards. Do not substitute Grade 8 fasteners with lower-grade hardware in high-load or safety-critical connections.