Tin-plated copper buses provide maximum conductivity and corrosion resistance. Insert-molded stainless steel studs eliminate the need for securing nuts and allow high torqueing for excellent electrical contact. UL 94-V0 rated UL 94-V0 rated base materials have flame retardants and will self extinguish if a flame source is removed. Terminal Threaded Fastener incorporate stainless steel split ring lock washers and captive star-type lock washers keep connections tight in high vibration environments. One-Piece Serrated Flange Nuts ensure correct and secure connections which do not cause resistance. Insulating covers meet ABYC and USCG insulation requirements.