Application and Specification Guides How To Measure Product Length and more Find out how to measure product length, runout length, grip length and effective length; download PDF and how to calculate product length suitability; download PDF. Head Types and Drive Bits Find downloadable PDF's for Head Types & Driver Bits, Product Head Marks, Point Types and Thread Types. Sealing Washers, Cyclone Plates, WeatherLok 2, Multiseal and ABW To find out how to identify Buildex® products; download the PDF here. Product Traceability To find out how to identify Buildex® products; download PDF. Colormatch® To find out about Colormatch.