Stainless Steel Flush Mount Side Lights  Flush Mount Side Lights are constructed of stamped 304 stainless steel. One pair includes port and starboard lights. For replacement of existing lighting (not for new construction). Installs with four #8 RH fasteners (not included). Approved for USCG 1 NM (A-16). All USCG approved navigation lights must be mounted properly to provide the correct visual alignment and allow unimpeded sight lines. Please refer to USCG regulations for 1 NM and 2 NM navigation lights for more information. Warning [https://productimageserver.com/prop65/6pt.png]WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov [http://P65Warnings.ca.gov].