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The VALUE COLLECTION C50000338 is a partially threaded hex head cap screw designed for heavy-duty bolted connections in structural, mechanical, and industrial applications. It features a 5/8-11 UNC thread size and an 11-inch length under head, giving it the reach needed for thick material assemblies. Manufactured from Grade 5 steel with an uncoated finish, this fastener meets ASME B18.2.1 and SAE J429 standards, making it suitable for applications that specify certified medium-strength fasteners. Licensed tradespeople and maintenance technicians typically reach for this size when assembling equipment frames, flanged connections, and structural brackets.
This hex head cap screw is suited for residential, commercial, and industrial mechanical work where a UNC 5/8-11 threaded fastener is specified. The partial threading allows for a smooth shank section, which is preferred in applications where shear loads are present or where the bolt passes through an unthreaded clearance hole before engaging a nut or tapped bore. It is commonly used in HVAC equipment mounting, mechanical room structural work, and general industrial equipment assembly.
Designed as a standard UNC hex head cap screw for use wherever a 5/8-11 partially threaded fastener conforming to ASME B18.2.1 and SAE J429 is specified.
Installation should be performed by a qualified mechanic or tradesperson following applicable torque specifications for Grade 5 fasteners as listed in standard fastener torque tables. Ensure mating threads are clean and free of debris before assembly. Do not exceed the rated proof load for Grade 5 hardware. When used in outdoor or high-moisture environments, apply an appropriate thread sealant or corrosion-resistant coating, as this fastener ships uncoated.
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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