Amphenol Sine Systems A Series™ Clips provide an optional method for mounting AT, ATM, ATP, and ATHD Series receptacles to the plug connectors. These clips are offered in stainless steel or steel with zinc plating. Amphenol Sine Systems A Series Clips are available in a variety of configurations, making them compatible with existing industry-standard connectors. Typical applications include heavy equipment, agriculture, construction, transportation, mining, industrial, railway, marine, harsh environments, and much more.