Spring Dynamics - Almont, MI (Serving Tennessee)
Manufacturer, Custom Manufacturer
TS/ISO 16949 certified manufacturer  All material sizes.  Prototype & production. CNC technology used to produce round wire springs to exact dimensional requirements.  Tapered, open hook, closed hook.  Heat treat, ID, coating available.  Design & engineering services available.
www.springdynamics.com/products

Southern Spring & Stamping, Inc. - Locations
Custom Manufacturer
ISO 9001:2008 certified custom manufacturer of extension springs. Capable of producing springs in wire sizes ranging from .006 through .472 in. with various end styles available, including basic hook & loop types such as swivel & extension hooks. Special packaging & color coding options available. Industries served include aerospace, amusement park, security, automotive, communication, electronics & medical.
southernspring.rtrk.com/?scid=2371062&rl_al...

Hardware Mfg. - Saint Louis, MO (Serving Tennessee)
Manufacturers' Rep
Manufacturers' Rep. for extension springs. Types include gas springs with composite ends, blade ends or metal ends in various lengths. Other products include latch systems & miscellaneous truckbody hardware.
www.hardwaremfg.com/index.html

Fastenal - Locations
Distributor, Custom Manufacturer
ISO 9001:2000 & 9003 certified worldwide distributor of extension springs. Specifications include outer dia. ranging from 0.140 in. to 1.125 in., wire dia. ranging from 0.015 in. to 0.120 in., length ranging from 1.125 in. to 7.5 in., zinc finish, hook or loop end type & load ranging from 0.27 lbs. to 40.90 lbs. Services include bandsaw welding, custom manufacturing, packaging, engineering, hose crimping, materials management, chemical & mechanical testing, calibration, tool & hoist repairing, tool & cutter grinding & metal cutting.
www.fastenal.com/web/products/_/Navigation?...

Southern Fasteners & Supply - New Johnsonville, TN
Distributor, Custom Manufacturer
Distributor of extension springs. Gardner
Brand Names: Gardner

Tennessee Coil Spring & Stamping, Inc. - Selmer, TN
Manufacturer, Custom Manufacturer
Manufacturer

Newcomb Spring of Tennessee - Ooltewah, TN
Manufacturer, Custom Manufacturer
ISO 9001:2000 certified custom manufacturer of extension, helical & coil springs. Specifications of springs include size ranging from 0.005 in. to 0.468 in. Springs are available in round, rectangular & square shapes. Features include threaded inserts, loops, hooks, expanded & reduced eyes & rectangular & teardrop-shaped ends. Standard manufacturing materials include spring steel, stainless steel, high & low carbon steel, nickel plated carbon steel, stainless alloys, non-ferrous metals, Elgiloy®, Hastelloy®, Monel®, Inconel® & titanium.

Tennessee Coil Springs, Inc. - Kingston, TN
Manufacturer, Custom Manufacturer
Designers/Manufacturers Of Precision Springs: Compression, Extension, Torsion

Clay Spring Mfg. Co. - Paris, TN
Manufacturer
Manufacturer Of Springs

Southern Spring Manufacturing Co., Inc. - Nashville, TN
Manufacturer
Manufacturer

Universal Springs, Inc. - Cleveland, TN
Manufacturer

Tri Matic Spring, Inc. - Savannah, TN
Manufacturer
Manufacturer of springs.