We supply these custom type B sheet metal screws to a long time customer on an as-needed blanket purchase order basis. It is a #12-11 sheet metal screw at 1-1/4 inches in length with a lead point incorporated per customer specifications. Low carbon steel, case hardened, is used with a commercial zinc and clear chromate finish. This custom screw is made in the USA with a lead time of 4-6 weeks and production runs typically ranging from 50,000 to 100,000 pieces. Internal part number BCPLP-1220-B.