Value Collection MPKP45116 Hex Cap Screw 5/8-18 Grade 8 10pk

Product Description

The VALUE COLLECTION MPKP45116 is a 5/8-18 UNF hex head cap screw designed for high-strength bolted assemblies where a fine-thread fastener is required. Manufactured from Grade 8 steel with a zinc-plated finish for corrosion resistance, this screw measures 2.5 inches under the head and is partially threaded. It meets ASTM A354 BD standards, making it appropriate for structural and mechanical fastening applications across HVAC equipment mounting, plumbing fixture support, and general trade installations. Sold in a package of 10.

This fastener is suited for residential and commercial applications where high tensile strength and fine thread engagement are needed. Typical uses include equipment mounting brackets, structural connections, and mechanical assemblies requiring Grade 8 rated hardware. The partial thread design provides a smooth shank section, which is beneficial when clamping two surfaces with a nut rather than threading into a tapped hole.

Key Features

• Grade 8 steel construction meets ASTM A354 BD standard for high-strength fastener applications
• 5/8-18 UNF fine thread provides tighter thread engagement compared to coarse thread equivalents
• Zinc-plated finish provides basic corrosion protection in indoor and sheltered environments
• Partially threaded shank allows full clamping force when used with a nut across unthreaded material
• 2.5-inch length under head accommodates moderate-depth clamping and bolting applications
• Packaged in quantities of 10 to support job-site and service van stocking

Compatibility

Designed as a standard 5/8-18 UNF Grade 8 hex head cap screw suitable for use in any application requiring an inch-system fine-thread fastener of this size and strength grade.

Installation Notes

Installation should be performed by a qualified mechanic or tradesperson using the appropriate hex wrench or socket. Torque to the value specified by the equipment manufacturer or applicable structural specification for Grade 8 fasteners of this diameter. Ensure mating surfaces are clean and free of debris before assembly. Do not reuse fasteners that show signs of thread damage, stretching, or corrosion.