Bronze grounding plates replace yards of copper foil. Looks like a solid bronze plate, but actually a porous matrix of bronze spheres, presenting the same effective electrical surface as a much larger expanse of copper foil. Use as electronic ground for SSBs, Lorans and ham transceivers, or as a ground reference in bonding systems. Includes gold-plated bronze flathead fasteners and silver contact paste for superior conductivity. Plates have tapered ends and rounded edges for reduced turbulence.Standard DynaplatePart No. 4006Dimensions: 6.0"W x 2.0" H x 0.50" DMounting Holes: 2-1/2" center to centerMounting Hardware:1-3" Gold plated bolt and nut, 1-3" Bronze bolt and nut, 3 copper washersWeight: 3 Lbs.Use for basic bonding and groundingImproves performance of electronics and reduces RF interferenceOffers the best path for hull bonding without long runs of copper foilEquivalent to 12 square feet of copper foilProvides a direct, low resistance path for improved lighting protectionDeters electrolysis and galvanic corrosionSintered porous bronze sphere construction for maximum conductivity in a compact sizeLow drag, non fouling shapeEasy to installEasy to clean with wire brushConforms to ABYC standards