Printable Fastener Tools
These to-scale 'lay-over' charts let you quickly identify dimensions by simply matching up your fastener with the printout. The printable fastener tools series also includes general charts and tools for identifying and measuring fasteners, including a ruler and thread gauge.
Note: If you can't open these PDF files directly in your browser, you can use a PDF viewer, such as Adobe Reader (free).
Important: Ensure that "Actual size" (no page scaling) is selected when printing. Measure the ruler on the printout to ensure correct scale.
US "Lay-over" Sizing Charts
Lay-over charts for quickly identifying diameter, thread count and other US fastener dimensions.
Metric "Lay-over" Sizing Charts
Lay-over charts for quickly identifying diameter, thread pitch and other metric fastener dimensions.