Value Collection BH063C225N Hex Head Cap Screw 5/8-11

Product Description

The VALUE COLLECTION BH063C225N is a Grade 8 zinc-plated steel hex head cap screw with a 5/8-11 UNC thread and a 2-1/4-inch length under head. Grade 8 classification indicates high tensile strength, making this fastener appropriate for heavy-duty structural and mechanical applications where joint integrity under load is critical. The zinc plating provides baseline corrosion resistance for general service environments. This screw is manufactured to ASTM A354 BD and MIL-HDBK-57 standards, confirming dimensional and mechanical compliance for use in demanding industrial and commercial installations.

This cap screw is suited for mechanical assemblies, structural steel connections, equipment mounting, and general fabrication work across industrial, commercial, and trade applications. It is commonly installed by millwrights, pipefitters, ironworkers, HVAC technicians, and maintenance professionals wherever a high-strength UNC fastener is required. The 5/8-11 thread size is a common heavy-equipment and structural standard, and this screw is appropriate for use in both new installation and replacement service work.

Key Features

• Grade 8 steel construction for high tensile strength in structural and mechanical joints
• 5/8-11 UNC thread form for broad compatibility with standard inch-system hardware
• 2-1/4-inch length under head suits medium-depth clamping applications
• Zinc plating provides corrosion resistance for general-duty service environments
• Meets ASTM A354 BD and MIL-HDBK-57 standards for verified dimensional and mechanical compliance
• 15/16-inch hex key drive size for use with standard open-end, box-end, or socket wrenches

Compatibility

Designed as a standard-dimension inch-series hex head cap screw for use with any 5/8-11 UNC-threaded nut, tapped hole, or coupling meeting ASTM or comparable dimensional standards.

Installation Notes

Install with a 15/16-inch open-end, box-end, or socket wrench. Torque to the value specified by the equipment manufacturer or applicable structural standard for Grade 8 fasteners at this diameter. Ensure mating threads are clean and free of debris before installation. De-energize and lock out any equipment before performing fastener service on live machinery.