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The VALUE COLLECTION 86853322 is a fully threaded hex head cap screw designed for high-strength fastening in industrial, mechanical, and trade applications. Manufactured from Grade 8 steel with a zinc-plated finish, this fastener delivers superior tensile strength compared to lower-grade hardware. The 5/16-18 thread size follows the Unified National Coarse (UNC) standard, and the 3/4-inch length under head makes it well suited for moderate-depth through-bolt and tapped-hole applications. Licensed tradespeople across HVAC, electrical, plumbing, and general mechanical service regularly use Grade 8 fasteners where vibration resistance and load capacity matter.
This screw is appropriate for residential and light commercial equipment assembly, bracket mounting, panel attachment, and structural fastening tasks where a UNC inch-series fastener is specified. The zinc plating provides baseline corrosion resistance suitable for indoor and sheltered environments. Fully threaded construction maximizes thread engagement across the entire shank length, which is useful when fastening thin materials or when maximum clamping force over a short grip length is required.
Designed as a standard inch-series UNC hex head cap screw compatible with any 5/16-18 tapped hole or matching hex nut in Grade 8 or lower-grade applications.
Install using a 1/2-inch drive or hand socket, combination wrench, or hex driver rated for Grade 8 fasteners. Always clean and inspect the mating threads before installation to avoid cross-threading. Do not mix Grade 8 fasteners with lower-grade nuts or inserts, as mismatched hardware can reduce joint integrity. Follow applicable equipment manufacturer torque specifications or relevant code requirements for the assembly being serviced.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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