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The HOLO-KROME 73098 is a hex socket cap screw engineered for high-strength fastening applications in industrial, mechanical, and trade assembly work. It features a 3/8-24 UNF thread size with fully threaded construction and a 1/2 inch length under head. The drive is a 5/16 inch hex socket, compatible with standard hex keys and Allen drivers. Manufactured from alloy steel with a black oxide finish coating, this screw offers solid corrosion resistance and meets ASME B18.3 and ASTM A574 standards. It is a reliable choice for precision assemblies requiring fine thread engagement and consistent clamping force.
This screw is suited for applications where fine-thread fasteners are specified, including machinery assembly, tooling fixtures, hydraulic components, and mechanical enclosures. The 3/8-24 UNF thread pitch provides higher thread engagement per inch compared to coarse thread, making it appropriate for thin-wall sections and applications requiring resistance to vibration loosening. This SKU is sold as a single piece with a minimum order quantity of 100 units, making it practical for shop stock or production line replenishment.
Designed as a direct-fit fine-thread hex socket cap screw for applications specifying 3/8-24 UNF alloy steel fasteners per ASME B18.3 and ASTM A574 standards.
Install using a properly sized 5/16 inch hex key or Allen driver to avoid rounding the socket drive. Always verify that the mating threaded hole or nut is rated for the same thread class before assembly. Follow torque specifications for ASTM A574 alloy steel socket cap screws as outlined in engineering references or applicable job specifications. Power down or de-energize any equipment before accessing fastened assemblies on live mechanical or electrical systems.
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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