Nice printable reference charts on screws & bolts

[William Long]

http://www.boltdepot.com/fastener-information/Printable-Tools/Default.aspx

The Fastener Type (Identification) Chart (http://www.boltdepot.com/fastener-information/Printable-Tools/Type-Chart.pdf) is really nice to get your terminology right.

[Bill Franklin]

Thanks for that. Good info in one place.