Value Collection D39223 Hex Head Cap Screw 1-8x5 Grade 8

Product Description

The VALUE COLLECTION D39223 is a partially threaded hex head cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. Sized at 1-8 UNC thread with a 5-inch length under head, this fastener is manufactured from Grade 8 steel for superior tensile strength and shear resistance. The zinc yellow dichromate finish provides corrosion protection suitable for general industrial environments. Manufactured to ASME B18.2.1 standards, this screw is a reliable choice for maintenance technicians, millwrights, and trade professionals working with heavy equipment and structural connections.

This cap screw is suited for use in residential and commercial mechanical systems, heavy equipment assembly, structural steel connections, and general industrial maintenance. The partial threading allows for a smooth shank section that resists lateral shear loads, making it well-suited for bolted joints where shank engagement in the material is required. Licensed tradespeople and maintenance professionals will find this fastener appropriate for applications demanding consistent clamping force and dimensional accuracy per ASME standards.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• 1-8 UNC thread size with 5-inch length under head
• Partially threaded shank for improved shear resistance at the joint
• Zinc yellow dichromate finish for corrosion protection in industrial settings
• Manufactured to ASME B18.2.1 dimensional standards
• Inch system of measurement with UNC thread standard

Compatibility

Designed as a standard 1-8 UNC Grade 8 hex head cap screw suitable for use in any application requiring ASME B18.2.1-compliant fasteners with matching 1-8 UNC threaded holes or nuts.

Installation Notes

Installation should be performed by qualified mechanical or maintenance trades personnel using calibrated torque tools appropriate for Grade 8 fasteners. De-energize, depressurize, or otherwise isolate the equipment or assembly before fastener replacement or tightening. Follow applicable torque specifications from the equipment manufacturer or relevant industry standards for the joint material and fastener size. Do not reuse fasteners that show signs of thread damage, corrosion, or deformation.