: Sells a popular 200 Piece Assorted Spring Set for under $10, containing both extension and compression types. 3. Specialized Engineering Suppliers (Best for Precision)

and True Value often have individual "pick-it" bins for specific small springs, which is better if you only need one or two pieces. 2. Online Retailers (Best for Value & Assortments)

: Offers various kits like the 390-Piece Compression Spring Assortment or the 96pcs Stainless Steel Extension Spring Set .

: A good source for "new old stock" or specific small lots of industrial-grade springs.

and Lowe’s typically stock spring assortment kits (e.g., the Everbilt Spring Assortment ) in their hardware or "fasteners" aisle.