7100-1020 - 

Twin Industries general-purpose prototype boards provide a versatile solution for many research and development projects. Available In Four Different Types: Perf board with non-plated holes, the 7100 series; perf board with plated through holes, the 8000 series; perf board with plated through holes with a plane on one side, the 8100 series; perf board with plated through holes and planes on both sides, the 8200 Series. Boards are available in a number of sizes. Material is FR-4 fiber glass with UL Flammability Class 94V-0. They are 0.062" thick with 0.037" plated through holes and 0.042" non-plated on a 0.1" × 0.1" grid spacing.