Value Collection MP39057 Hex Cap Screw 3/8-16 Grade 8 25 Pack

Product Description

The VALUE COLLECTION MP39057 is a partially threaded hex head cap screw designed for high-strength fastening applications in mechanical, structural, and industrial assemblies. Manufactured from Grade 8 steel with a zinc yellow dichromate finish, this fastener delivers elevated tensile strength and corrosion resistance compared to lower-grade alternatives. The 3/8-16 UNC thread and 1-3/4 inch length under head make it a common specification in machinery, brackets, and heavy equipment. Sold in a package of 25, this screw conforms to ASME B18.2.1 dimensional standards. Machinists, millwrights, maintenance technicians, and field mechanics routinely specify Grade 8 hardware for applications requiring dependable clamp load under vibration or dynamic load.

This cap screw is suited for use in industrial equipment assembly, structural steel connections, agricultural machinery, and automotive or truck chassis work where high-strength fasteners are required. The partial threading allows the unthreaded shank to bear shear loads, which is typical in bolted joint designs where the fastener passes through a clearance hole before engaging a nut or tapped boss. The zinc yellow dichromate coating provides a moderate level of corrosion protection appropriate for indoor and sheltered outdoor environments.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• Zinc yellow dichromate finish for corrosion resistance and easy visual identification as Grade 8
• Partially threaded shank to handle shear loads in clearance-hole joint designs
• 3/8-16 UNC thread form for compatibility with standard inch-series nuts and tapped holes
• Conforms to ASME B18.2.1 dimensional standards
• Sold in a pack of 25 to support both service and production quantities

Compatibility

Designed as a standard inch-series hex head cap screw for use with 3/8-16 UNC nuts, inserts, or tapped holes in any application calling for Grade 8 fasteners per ASME B18.2.1.

Installation Notes

Installation is performed with a standard hex wrench, socket, or impact driver sized for a 3/8-16 hex head cap screw. Always verify that mating threads and tapped holes are clean and free of debris before assembly. Follow applicable torque specifications from the equipment manufacturer or relevant fastener standards for Grade 8 hardware. Inspect fasteners for damage prior to installation and do not reuse fasteners that show signs of thread deformation or corrosion.