| These PDF charts, tables, and other printable tools will help you identify the size and type of fastener you are looking for. Feel free to print them for your reference (see below for printing instructions). Lay-over Charts After printing Lay your fasteners directly on these full size charts to identify them. US Bolt Diameter and Thread Chart
A 'lay-over' chart for identifying US bolt diameter and thread count. US Machine Screw Diameter and Thread Chart
A 'lay-over' chart for identifying US machine screw diameter and thread count. Metric Bolt Diameter and Thread Chart
A 'lay-over' chart for identifying Metric bolt diameter and thread pitch. Metric Machine Screw Diameter and Thread Chart
A 'lay-over' chart for identifying Metric machine screw diameter and thread pitch. USS & SAE Flat Washer Chart
A 'lay-over' chart for distinguishing between USS and SAE pattern washers.
ToolsUS and Metric Ruler
Print a fully functional US and Metric ruler. US Thread Gauge
A printable paper version of our popular US Thread Gauge. Use this tool to distinguish between course and fine thread bolts and machine screws. Metric Thread Gauge
A printable paper version of our popular Metric Thread Gauge. Use this tool to distinguish between the many thread pitches used on metric bolts and machine screws.
General ReferenceFastener Type (Identification) Chart
This general reference chart will help you identify various types of fasteners.
Printing Instructions: To print these files open in Adobe Acrobat Reader and select print, then UN-CHECK all printer SCALING options (such as Scale to fit). You can use the US ruler on the edge or bottom of each document to check to make sure they are printed to the correct scale. Note: You must have Adobe Acrobat Reader installed to view and print these files. Brought to you by Shopdawg.com and our friends at BoltDepot.com 
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