Screw Products’ White Head Trim Head Screws are designed for materials with a white finish like decking, fascia, fencing, siding, trim and more. The interior and exterior multi-purpose screw is available in multiple sizes: 9 x 1 5/8 in.; 9 x 2 in.; 9 x ½ in.; and 9 x 3 in. Also, the screws can be ordered in various quantities, including jars and pails.