Value Collection MP39059 Hex Cap Screw 3/8-16 Grade 8 25 Pack

Product Description

The VALUE COLLECTION MP39059 is a Grade 8 steel hex head cap screw sized at 3/8-16 UNC thread by 2-1/4 inches under the head. It is partially threaded and finished with a zinc yellow dichromate coating that provides corrosion resistance in general industrial and mechanical applications. Manufactured to ASME B18.2.1 standards, this fastener is suited for high-strength bolted connections where a recognized dimensional and performance standard is required. Machinists, maintenance technicians, and contractors install this type of fastener across a wide range of structural and equipment assembly work.

This screw is appropriate for use in industrial machinery, structural assemblies, equipment mounting, and general mechanical construction where a Grade 8 tensile strength rating is specified. The 3/8-16 UNC thread is one of the most common inch-series coarse thread sizes, making this screw compatible with standard tapped holes and hex nuts of the same thread designation. The partial threading allows for a smooth shank section under the head, useful in applications requiring a grip length or shear-bearing engagement. Sold in a pack of 25 units.

Key Features

• Grade 8 steel construction for high tensile and proof load strength requirements
• 3/8-16 UNC thread — a widely used inch-series coarse thread designation
• Partially threaded shank provides a smooth grip length below the head
• Zinc yellow dichromate finish offers corrosion resistance in general service environments
• Manufactured to ASME B18.2.1 dimensional standards for consistent fit and performance
• Pack of 25 screws per order quantity

Compatibility

Designed for use with standard 3/8-16 UNC tapped holes, hex nuts, and threaded inserts in inch-series mechanical and structural assemblies.

Installation Notes

Installation is typically performed by machinists, maintenance technicians, or general contractors using standard hex wrenches or socket drive tools sized for a 3/8-16 hex head cap screw. Ensure mating threads are clean and free of debris before installation. Always torque to the value specified by the equipment manufacturer or applicable engineering standard for Grade 8 fasteners. Do not substitute a lower-grade fastener in applications where Grade 8 strength is specified.