Value Collection BH063C275N Hex Head Cap Screw 5/8-11

Product Description

The Value Collection BH063C275N is a Grade 8 steel hex head cap screw with a 5/8-11 UNC thread and a 2-3/4 inch length under head. Zinc-plated for corrosion resistance, it meets ASTM A354 BD and MIL-HDBK-57 standards, making it suitable for high-strength fastening applications in demanding environments. The 15/16-inch hex key drive size is compatible with standard wrenches and sockets. This fastener is appropriate for use in mechanical assemblies, structural connections, and equipment installations where Grade 8 tensile strength is specified.

This cap screw is used in industrial, commercial, and trade applications where UNC-threaded, high-strength fasteners are required. Typical installation scenarios include HVAC equipment mounting, electrical enclosure assembly, plumbing fixture support structures, and general mechanical assembly. The zinc finish provides a basic level of corrosion protection suitable for indoor or sheltered outdoor environments.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• Zinc-plated finish for corrosion resistance in typical service environments
• 5/8-11 UNC thread for broad compatibility with standard nuts and tapped holes
• 2-3/4 inch length under head suits medium-depth fastening applications
• Meets ASTM A354 BD and MIL-HDBK-57 standards for verified mechanical performance
• 15/16-inch hex drive accommodates standard wrenches and impact sockets

Compatibility

Designed for use with standard 5/8-11 UNC nuts, washers, and tapped holes in inch-system assemblies requiring Grade 8 fastener strength.

Installation Notes

Installation should be performed by a qualified technician familiar with proper fastener torque procedures for Grade 8 hardware. Always use appropriate wrenches or impact tools sized for the 15/16-inch hex drive. Inspect mating threads and hardware before installation to ensure compatibility and prevent cross-threading. Follow applicable equipment manufacturer specifications and relevant codes for fastener preload in structural or mechanical assemblies.