Value Collection B10066 Hex Head Cap Screw 5/8-11 X 13 in

Product Description

The VALUE COLLECTION B10066 is a Grade 8 steel hex head cap screw with a 5/8-11 UNC thread and a 13-inch length under head. Grade 8 steel provides high tensile strength, making this fastener appropriate for demanding structural and mechanical assemblies. The screw is partially threaded and left uncoated, which is typical for applications where a zinc or other surface treatment is not required by the design specification. It meets ASME B18.2.1 dimensional standards. Machinists, millwrights, and maintenance technicians commonly use this size in heavy equipment, structural steel, and industrial machinery applications.

This fastener is suited for heavy-duty bolted joints in industrial, construction, and mechanical settings where high-strength hardware is specified. The partial threading design provides a smooth shank section under the head, which resists shear loads and is commonly used in close-tolerance through-bolt applications. It is sold in a package quantity of five, which suits low-volume repair work and prototype assembly alike.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• 5/8-11 UNC thread form per Unified National Coarse standard
• 13-inch length under head accommodates thick structural members
• Partially threaded shank improves shear resistance in bolted connections
• Uncoated finish suitable where coating is not specified or required
• Conforms to ASME B18.2.1 dimensional standard

Compatibility

Designed as a standard-dimension hex head cap screw compatible with any 5/8-11 UNC tapped hole or nut conforming to Unified National Coarse thread specifications per ASME B18.2.1.

Installation Notes

Installation should be performed by a qualified mechanic, millwright, or structural technician familiar with bolted joint requirements. Always degrease mating surfaces and verify thread condition before assembly. Torque to the value specified by the equipment manufacturer or applicable structural code for Grade 8 fasteners at this diameter. Do not mix metric and inch hardware in the same joint.