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The VALUE COLLECTION 581697BR is a partially threaded hex socket cap screw designed for high-strength fastening applications in industrial and mechanical assemblies. It features a 3/4-10 UNC thread size and an 8-1/2 inch length under head, making it well suited for deep-engagement bolted joints. The 5/8 inch hex drive accepts a standard hex key or socket driver for installation and removal. Constructed from alloy steel with a black oxide finish, this fastener delivers solid tensile strength and moderate corrosion resistance in protected environments. Licensed tradespeople and maintenance mechanics working on machinery, structural frames, and heavy equipment are the typical installers.
This screw is appropriate for use in industrial equipment, structural assemblies, jigs and fixtures, and general mechanical fabrication where a strong, socket-driven fastener is required. The 3/4-10 UNC coarse thread pattern provides good thread engagement and is easier to start in tapped holes compared to fine-thread equivalents. The partial threading leaves a smooth shank section below the head, which helps align mating components and resist shear loads. It conforms to ASME/ANSI B18.3 and ASTM A574 fastener standards.
Designed as an OEM-style replacement or direct-use fastener for industrial and mechanical assemblies requiring a 3/4-10 UNC partially threaded hex socket cap screw conforming to ASME/ANSI B18.3 and ASTM A574 specifications.
Installation is typically performed by maintenance mechanics or millwrights using a 5/8 inch hex key or socket driver. Ensure the tapped hole or nut is clean and free of debris before threading the fastener. Apply appropriate thread lubricant or anti-seize compound per your facility or equipment standards to prevent galling on alloy steel fasteners. Follow torque specifications provided by the equipment manufacturer or applicable industry standards for the fastener grade and joint requirements.
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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