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The VALUE COLLECTION 307315PR is a hex socket cap screw designed for precision fastening in mechanical, industrial, and trade applications. This fastener features a 5/16-24 UNF thread size, a 1-1/2 inch length under head, and a 7/32 inch hex drive. Constructed from alloy steel with a black oxide finish coating, it meets ASTM A574 standards for mechanical and tensile performance. The fully threaded shank provides consistent clamping force across the entire fastener length. It is sold in a minimum order quantity of 100 pieces per order, with a package quantity of 1.
This screw is suited for applications requiring a fine-thread fastener with a low-profile socket head, including machinery assembly, equipment maintenance, and structural connections where controlled torque and close-tolerance threading are required. The 5/16-24 UNF fine thread pitch offers greater resistance to loosening under vibration compared to coarse-thread equivalents, making it appropriate for dynamic load environments. Machinists, maintenance technicians, and mechanical contractors are the typical installers of this fastener type.
Designed as an OEM-style replacement or standard-supply fastener for any application requiring a 5/16-24 UNF hex socket cap screw conforming to ASTM A574.
Installation should be performed by a qualified machinist or mechanical technician using an appropriately sized 7/32 inch hex key or socket bit. Always clean and inspect threaded holes before installation to avoid cross-threading. Do not exceed the rated torque for the thread size and material grade as specified by ASTM A574 or the equipment manufacturer. Wear appropriate PPE when working with fasteners in high-load assemblies.
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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