Industrail Spring Company is an industry leader in the manufacturing of springs for mechanical use and garage doors. Also, offering replacement and spring servicing..Ordering USA made garage door springs online has never been easier than DIY Garage Door Parts. For information, great prices, fast shipping order today!.Garage door extension springs for sectional overhead type residential, commercial and industrial doors. We give instructions on replacing broken extension springs and .Our top selling all in one garage door springs kit has helped over million Americans fix their own garage doors and save money. This is the only source to find our .
. Torsion Springs. Whereas extension springs “extend” or “stretch,” torsion springs use torque to raise garage doors. Attached above the garage opening, torsion springs slowly twist and coil on the shaft whenever force is applied via hand or motor ..