Value Collection D39149 Hex Head Cap Screw 5/8-11 X 2 in Grade 8

Product Description

The VALUE COLLECTION D39149 is a fully threaded hex head cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. Built to Grade 8 steel specification, this fastener delivers superior tensile and proof load strength compared to lower-grade alternatives. The 5/8-11 UNC thread profile and 2-inch length under head make it a dependable choice for bolted connections that require consistent clamping force. A zinc yellow dichromate finish provides corrosion resistance suitable for general service environments. Manufactured in conformance with ASME B18.2.1 dimensional standards, ensuring interchangeability and reliable fitment across standard hex tooling.

This cap screw is used across a wide range of industrial and mechanical applications including equipment mounting, structural steel connections, heavy machinery assembly, and maintenance repair work. The fully threaded shank maximizes thread engagement across thinner material stacks. Grade 8 strength makes it appropriate for high-load bolted joints where lower-grade fasteners would be insufficient. It is commonly installed by millwrights, pipefitters, electricians during equipment work, HVAC technicians mounting heavy equipment, and general industrial maintenance crews.

Key Features

• Grade 8 steel construction for high tensile strength and proof load capacity
• Fully threaded shank for maximum thread engagement in thinner material applications
• 5/8-11 UNC thread form for compatibility with standard inch-series nuts and tapped holes
• 2-inch length under head suits a wide range of bolted joint stack-ups
• Zinc yellow dichromate finish provides corrosion resistance for general service use
• Manufactured to ASME B18.2.1 dimensional standards for reliable fit and interchangeability

Compatibility

Designed as a standard inch-series hex head cap screw compatible with any 5/8-11 UNC threaded nut, insert, or tapped hole conforming to ASME B18.2.1 dimensional requirements.

Installation Notes

Install using a standard 15/16-inch hex wrench or socket driver. Ensure mating threads and bearing surfaces are clean and free of debris before assembly. Apply thread lubricant or anti-seize as required by the application to achieve accurate clamp load from torque input. Always torque to the specification called out in the engineering drawing or equipment service manual for the joint being assembled.