TECHNICAL INFORMATION KNOWLEDGE BASE Technical Information Please select from the list below for technical information on Fasteners that you may find useful. If you have any questions about Fasteners or require further technical information, please contact us. FASTENERS STANDARD. DIN STANDARD FASTENERS WEIGHT CHART. STAINLESS STEEL CHEMICAL COMPOSITION. METRIC & IMPERIAL THREAD SIZE GUIDE. METRIC PITCH GUIDE. RECOMMENDED DRILL SIZES FOR SCREW. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)