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.

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Lay-over chart example

Important: Printing To Scale

Note Page scaling optionsWhen printing, make sure that any page scaling is turned off. After printing, measure the scale check on the printout to ensure correct scale.

Chrome/Firefox users: Printing to scale doesn't work in all versions of Firefox and Chrome. We recommend using a PDF reader, such as Adobe Reader.
General Reference and Tools
Our 2-page, illustrated guide to basic fastener concepts - designed to quickly give you the knowledge to identify, find and use the correct fastener.
This comprehensive reference guide will help you identify fastener categories, head styles and drive types, as well as common nut and washer types.
Print a fully functional US and Metric ruler.
A printable paper version of our popular Thread Gauges. Use this tool to distinguish between coarse and fine thread bolts and machine screws, as well as the many thread pitches used on metric bolts and machine screws.

See our catalog for thread gauge hardware.



US 'Lay-over' Sizing Charts
Lay-over charts for quickly identifying diameter, thread count and other US fastener dimensions.