Value Collection MP39387 Hex Cap Screw 7/16-20 X 3 in Grade 8

Product Description

The VALUE COLLECTION MP39387 is a partially threaded hex head cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. Manufactured from Grade 8 steel with a zinc yellow dichromate finish, this fastener delivers superior tensile strength and corrosion resistance compared to lower-grade alternatives. The 7/16-20 UNF thread form provides fine-thread engagement for applications requiring precise torque control and vibration resistance. The 3-inch length under head suits medium-depth through-bolt and threaded-insert installations. This screw meets ASME B18.2.1 dimensional standards, making it a reliable choice for precision assemblies where dimensional conformance is required.

This fastener is suited for use in mechanical and industrial applications where high-strength steel fasteners are specified. The fine UNF thread pattern makes it appropriate for use in metal-to-metal assemblies, machinery frames, brackets, and equipment where vibration resistance is a priority. It is commonly specified by maintenance technicians, millwrights, and fabricators working on manufacturing equipment, transportation components, and structural hardware requiring Grade 8 rated fasteners.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• Zinc yellow dichromate finish provides corrosion resistance
• 7/16-20 UNF fine thread for precise torque control and vibration resistance
• 3-inch length under head accommodates medium-depth fastening applications
• Partially threaded shank allows for clamping force across unthreaded grip length
• Meets ASME B18.2.1 dimensional standards for consistent fitment

Compatibility

Designed as a standard-dimensional Grade 8 hex head cap screw conforming to ASME B18.2.1, suitable for use in any application calling for a 7/16-20 UNF partially threaded fastener in that thread and length specification.

Installation Notes

Installation is performed by maintenance technicians, millwrights, or fabricators using standard hex wrenches or sockets sized for the 7/16-20 hex head. Always clean and inspect the mating threaded hole or nut before installation to ensure thread integrity. Apply appropriate thread lubricant or thread-locking compound per the equipment manufacturer's specification. Grade 8 fasteners require a calibrated torque wrench to achieve correct clamp load without risk of fastener failure.