I bought a small 3/8" x 1 1/2" pack to test. They worked well so I needed more, I went online and found your website. They had the right number of pins or project, 200. The pins arrived, put them in the board, they fit perfectly, but they were too big for the project. Project, the other pins were the wrong size, Chinese manager Junk decided not to use pins at all, instead using external screws as pins. The screw heads were 3/16 inch, which he considered to be the ideal size. Edwin Ah