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The VALUE COLLECTION MP39330 is a fully 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 hardware. The 5/16-24 UNF thread pattern provides fine-thread engagement suited to applications requiring precise torque retention and resistance to vibration loosening. Sold in a package quantity of 50, this screw conforms to ASME B18.2.1 and SAE J429 standards, making it a compliant choice for demanding spec-driven work.
This cap screw is appropriate for use in automotive, heavy equipment, agricultural machinery, and general industrial assemblies where Grade 8 strength is specified. The fine unified thread (UNF) designation suits applications involving metal-to-metal fastening where thread stripping resistance and load capacity are priorities. The zinc yellow dichromate coating provides a recognizable visual indicator of Grade 8 specification while offering a layer of corrosion protection in moderate service environments. Licensed tradespeople and MRO maintenance technicians will find this 50-piece pack practical for stocking a service vehicle or shop inventory.
Designed as a standard UNF hex head cap screw for use in any application specifying a 5/16-24 Grade 8 fastener per ASME B18.2.1 and SAE J429.
Installation should be performed by qualified mechanical or maintenance tradespeople familiar with fastener specifications and torque requirements for Grade 8 hardware. Always verify the mating thread is clean and undamaged before driving the screw. Apply torque values as specified by the equipment manufacturer or applicable engineering standard — do not substitute torque specs from this listing. Replace any fastener that shows signs of thread damage, galling, or corrosion before returning the assembly to service.
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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