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Lee Spring, a leading spring manufacturer, has a huge inventory of precision stock & custom springs. Extensive online catalog of stock springs

Century Spring is the leading precision-machined spring manufacturer with over 300 million springs in stock.

Grainger is a leading domestic and international business-to-business distributor. With thousands of products to choose from, we

eFunda, the ultimate online reference for the mechanical engineering community

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Offering the world?s largest inventory of stock springs and spring washers, with well over 100 million compression, extension, torsion and constant?force springs, as well as Belleville, finger, wave, curved spring washers, as well as industrial and v...

Buying custom springs? Here 1000s of spring manufacturers compete for your business! Need an explanation of torsion springs or a spring rate calculation? Design, quote, purchase at Planetspring.com

Scientific physics forums for professionals and students to discuss serious issues and topics regarding physics in theory, practice, study and reality. Students can also find help for homework and career perspectives

Learn how to do just about everything at eHow. Expert Village is now a part of eHow, adding expert How To videos to eHow, the world

Spring Engineers of Houston manufactures custom springs, compression springs, torsion springs, and springs washers in a variety of metals: brass, copper, titanium, and stainless steel. We are ISO 9001:2000 certified

Compression springs, extension springs, torsion springs and wire forms from Ace Wire Springs

Advanced Engineering Design, Lifetime Performance and Reliability