Value Collection MPKP44022 Hex Head Cap Screw 5/16-18 Grade 8

Product Description

The Value Collection MPKP44022 is a fully threaded hex head cap screw designed for high-strength fastening applications in mechanical, structural, and industrial assemblies. Sized at 5/16-18 UNC with a 1-1/4 inch length under head, it is manufactured from Grade 8 steel and finished with a zinc plating for basic corrosion resistance. Grade 8 designation meets ASTM A354 BD standards, making it suitable for heavy-duty bolted connections where tensile and proof load requirements are critical. This package contains 25 pieces, supplying enough fasteners for a full service call or small assembly run.

This screw is appropriate for use in equipment mounting, bracket fastening, and structural joint assembly across HVAC, plumbing, electrical, and general mechanical trade work. The UNC thread form and inch-system sizing make it a common choice for replacement fastening in standard American equipment. Fully threaded construction provides maximum thread engagement across the entire grip length, which is especially useful in thinner material applications or where a nut is used at both ends.

Key Features

• Grade 8 steel construction meets ASTM A354 BD for high tensile strength fastening
• Fully threaded body maximizes thread engagement along the entire shank length
• 5/16-18 UNC thread form fits standard inch-system nuts, tapped holes, and hardware
• Zinc-plated finish provides basic corrosion resistance for indoor and protected applications
• Pack of 25 pieces supports multi-fastener jobs without ordering multiple SKUs

Compatibility

Designed as a standard inch-system replacement hex head cap screw for use with 5/16-18 UNC tapped holes, nuts, and threaded inserts in mechanical and structural assemblies.

Installation Notes

Installation is performed by electricians, HVAC technicians, plumbers, and general mechanical trades using a standard hex wrench or socket set. De-energize and lock out equipment before fastening near electrical components. Apply thread lubricant or anti-seize as appropriate for the joint material and service environment. Do not exceed the torque specifications listed in the equipment manufacturer documentation for Grade 8 fasteners of this diameter.