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The VALUE COLLECTION 307305PR is a fully threaded hex socket cap screw designed for precision fastening applications where a low-profile, high-strength fastener is required. Sized at 5/16-24 UNF with 7/8 inch length under head, this screw is driven by a 7/32 inch hex key. Constructed from alloy steel and finished with a black oxide coating, it meets ASTM A574 standards, making it appropriate for mechanical assemblies, tooling fixtures, and equipment where tensile strength and corrosion resistance matter. Installation is handled by maintenance technicians, millwrights, and assembly professionals working in industrial and commercial settings.
This fastener is suited for use in machine tool assemblies, equipment frames, and structural mechanical joints where fine-thread UNF engagement is specified. The 5/16-24 UNF thread pitch provides finer thread engagement than coarse-thread equivalents, which is advantageous in applications requiring precise torque control or where the fastener threads into a tapped hole in metal. The black oxide finish offers mild corrosion resistance and reduces light reflection in precision instrument and tooling applications.
Designed as an OEM-style replacement or stock fastener for industrial mechanical assemblies specifying 5/16-24 UNF hex socket cap screws conforming to ASTM A574.
Installation is performed using a 7/32 inch hex key or Allen driver. Ensure the mating tapped hole meets 5/16-24 UNF thread standards before installation. De-energize or lock out any equipment before replacing fasteners in live assemblies. Do not exceed the rated torque for the thread and material class as specified by the applicable fastener standard or equipment manufacturer documentation.
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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