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The HOLO-KROME 72190 is a hex socket cap screw designed for high-strength fastening in mechanical and structural assemblies. It features a 7/16-14 UNC thread and a 3/4-inch length under head, making it suitable for applications requiring a compact, fully threaded fastener. The screw is manufactured from alloy steel and finished with a black oxide coating that provides moderate corrosion resistance and reduces light reflection. Drive engagement is achieved with a 3/8-inch hex key. This fastener meets ASME B18.3 and ASTM A574 standards, confirming its suitability for demanding load-bearing applications. It is typically installed by machinists, millwrights, and maintenance technicians across industrial and mechanical service environments.
The HOLO-KROME 72190 is used in general industrial machinery, equipment assemblies, and fabrication work where a recessed-drive cap screw is required. Its fully threaded design maximizes thread engagement in thinner materials or shallow tapped holes. The black oxide finish makes it a common choice for tooling plates, machine frames, and fixtures where appearance and moderate surface protection matter. This fastener is sold individually but requires a minimum order quantity of 50 pieces.
Designed as a standard ASME B18.3 hex socket cap screw for use in any 7/16-14 UNC tapped hole requiring a high-strength alloy steel fastener with a recessed hex drive.
Installation is performed with a 3/8-inch hex key or Allen-drive bit; ensure the key is fully seated before applying torque to avoid rounding the socket. Verify the receiving tapped hole meets 7/16-14 UNC thread specifications and is free of debris before driving the fastener. Power down or de-energize any equipment before performing fastener service on live machinery. Follow applicable torque specifications from the equipment manufacturer or ASME standards for ASTM A574 alloy socket cap screws.
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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