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The HOLO-KROME 720000530 is a hex socket cap screw designed for precision fastening in mechanical, industrial, and trade applications. It features an 8-32 UNC thread and a 5/16-inch length under head with full threading from head to tip. The drive is a 9/64-inch internal hex socket, requiring an Allen-type hex key for installation. Constructed from alloy steel with a black oxide finish coating, this fastener resists corrosion and meets ASME B18.3 and ASTM A574 standards. It is well suited for high-strength fastening tasks where a clean, recessed drive head is required and where dimensional precision matters.
This fastener is commonly used in machinery assembly, equipment maintenance, HVAC component mounting, electrical enclosures, and general mechanical fabrication. The 8-32 UNC thread is a standard fine-pitch size frequently encountered in light to medium-duty metal fastening work across residential and commercial trade environments. The black oxide finish provides mild surface protection suitable for interior or low-moisture applications.
Designed as a standard 8-32 UNC hex socket cap screw suitable for any application requiring an ASME B18.3-compliant fastener in that thread size and length.
Installation requires a 9/64-inch hex key or Allen driver. Ensure the mating thread is clean and free of debris before driving the fastener. Apply appropriate torque for 8-32 alloy steel fasteners per the assembly specification in use. Follow applicable mechanical codes and equipment manufacturer guidelines when installing in trade equipment or enclosures.
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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