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The VALUE COLLECTION C703051 is a fully threaded hex head cap screw designed for high-strength fastening applications in mechanical, industrial, and trade service environments. Manufactured from Grade 8 steel with no finish coating applied, this fastener delivers the elevated tensile and proof load strength that Grade 8 classification requires. The thread size is 5/16-24, a fine unified thread (UNF) pitch, and the length under head is 1/2 inch. Conformance to ASME B18.2.1 ensures dimensional accuracy and interchangeability with standard tooling. These screws are sold in a package quantity of 100 and are suitable for volume service work or stocking in a shop inventory.
These fasteners are appropriate for use in residential and commercial mechanical systems, equipment assembly, and structural connections where a fine-thread, high-strength hex cap screw is specified. Fine-thread UNF fasteners are commonly used where vibration resistance or precise torque control is required. The 5/16-24 thread size is frequently found in HVAC equipment mounting, electrical enclosure assembly, pump and motor hardware, and general mechanical repair work requiring a compact, high-strength fastener.
Designed as a standard ASME B18.2.1 hex head cap screw suitable for any application specifying a 5/16-24 UNF, Grade 8, fully threaded fastener with a 1/2 inch length under head.
Installation of Grade 8 fasteners should be performed by a qualified mechanic or tradesperson using a calibrated torque wrench to achieve the specified clamp load without yielding the fastener. Always verify thread engagement depth and ensure mating threads are clean and free of debris before installation. Do not substitute lower-grade fasteners in applications that specify Grade 8. Consult applicable equipment service manuals or structural specifications for torque requirements specific to the assembly.
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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