Value Collection 451186BR Hex Head Cap Screw 5/8-11 X 16 in

Product Description

The VALUE COLLECTION 451186BR is a hex head cap screw built to Grade 8 steel specification for high-strength fastening applications. Measuring 5/8-11 thread size with a 16-inch length under head, this fastener uses a Unified National Coarse (UNC) thread form and is partially threaded along its shank. The bright, uncoated finish leaves the steel bare, making it suitable for applications where a coating-free surface is required or where the installer will apply a separate treatment. It conforms to ASME B18.2.1, the standard governing inch-series hex cap screws. Installation requires a 15/16-inch hex key or socket. Installers in mechanical, structural, and industrial trades rely on this fastener for demanding connections requiring high clamp load.

This fastener is appropriate for heavy-duty bolted connections in industrial machinery, structural steel assemblies, agricultural equipment, and general mechanical fabrication. The Grade 8 rating makes it suited for high-stress joints where standard Grade 5 or lower hardware would be insufficient. The partial thread configuration provides a smooth shank section useful in joints requiring a bearing surface or precise shear load transfer. Sold individually per package.

Key Features

• Grade 8 steel construction for high tensile and proof load capacity
• 5/8-11 UNC thread size with 16-inch length under head
• Partially threaded shank for shear-bearing and clamping applications
• Bright, uncoated finish — no plating or treatment applied
• Conforms to ASME B18.2.1 inch-series hex cap screw standard
• 15/16-inch hex drive size for standard socket or open-end wrench installation

Compatibility

Designed as an OEM-style replacement or direct-use fastener for any application requiring a 5/8-11 UNC hex head cap screw at 16 inches length under head, Grade 8 steel, conforming to ASME B18.2.1.

Installation Notes

Installation should be performed by a qualified mechanic, millwright, or structural tradesperson familiar with high-strength fastener procedures. Always verify the mating nut or tapped hole is rated to Grade 8 or equivalent before assembly. Use a calibrated torque wrench and follow the torque specification provided by the equipment manufacturer or applicable structural code for 5/8-11 Grade 8 fasteners. Inspect threads for damage before installation and never reuse a fastener that shows signs of thread deformation or hydrogen embrittlement.