The Amphenol Sine Systems AT27-003-1200 is a mounting clip designed to securely install AT, ATM, ATP, ATHD Series connectors with 2, 3, 4, 6, or 12 positions. Made from durable stainless steel, this mounting clip features a .433 [11.00 mm] diameter hole for easy installation. It provides a reliable and sturdy solution to keep your connectors in place, ensuring a secure and dependable electrical connection.