... disc contacts, semi tubular rivets, special contact High Quality Tri-Metal Contact Rivets,electrical contact rivets ... others in fast delivery, competitive price and high quality.Specifications of tri-metal contacts:1. Head ... Thickness of shank face material 0.5mm-0.8mm6. Contact material: AgCdO, AgSnO2, AgniMore competitive price, more excellent quality, more considerate service! High Quality ...