Contact boards can have any number of pins. The quantity of pins, their size and shape and placement all varies to match your exact samples.
Ternes Burton makes several style of compressible pin boards. These are multi layer items with aluminum backing and a vinyl top layer. Generally used by commercial printers, these items cost several hundred dollars. This is not an item meant to take the place of stripping tabs and register pins. The compressible pins mounted in the board is meant to match the plate or film punch and the cost depends upon the number of compressible pins and the overall board size. These boards are not rigid, but they are not bendable and need to be shipped flat. They are about .160" thick. Boards made with no perimeter holes (4CB style) are generally used for making single burns. Any board has two or more compressible pins mounted permanently into the board surface and a printing plate is first attached to these pins, then a film is attached on top of the plate to the same pins, the board is then placed into a vacuum frame where the image from the film is then burned into the plate. Newspapers commonly have four inline pins and use either two single plates (a left and a right page) or a double truck plate. Tail pins can be mounted into the board if required to help reduce tail whip. Boards are .160" thick and can be made any width and length required. A stepboard, also called a step and repeat board, is a board made from layers of mylar, vinyl, and aluminum, and has perimeter holes around all four sides. These boards are meant for making multiple images on a printing plate- accurately and affordably. Work can be stepped horizontally, vertically, or both. Steps can be made in fractions as small as 1/64" but are more commonly made in steps of 1/2", 1/4" 1/8", and 16ths. Boards are accurate to +/- .003". Ternes Burton makes several styles of boards with several variations. Please phone us with your specific questions as emails take too much time for detailed answers. Thank you.
The step and repeat board has perimeter holes into which spacers are inserted, then your plate is attached to the compressible pins, and your stripped flat is attached to the movable spacers.