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Need a different Wire Size?
Click to See Available Options
- Commercial Torsion Spring 0.243 Wire Size
- Commercial Torsion Spring 0.250 Wire Size
- Commercial Torsion Spring 0.262 Wire Size - Left Hand Wind
- Commercial Torsion Spring 0.262 Wire Size - Right Hand Wind
- Commercial Torsion Spring 0.273 Wire Size - Left Hand Wind
- Commercial Torsion Spring 0.273 Wire Size - Right Hand Wind
- Commercial Torsion Spring 0.283 Wire Size - Left Hand Wind
- Commercial Torsion Spring 0.283 Wire Size - Right Hand Wind
- Commercial Torsion Spring 0.295 Wire Size - Left Hand Wind
- Commercial Torsion Spring 0.295 Wire Size - Right Hand Wind
- Commercial Torsion Spring 0.306 Wire Size - Left Hand Wind
- Commercial Torsion Spring 0.306 Wire Size - Right Hand Wind
- Commercial Torsion Spring 0.312 Wire Size - Left Hand Wind
- Commercial Torsion Spring 0.312 Wire Size - Right Hand Wind
- Commercial Torsion Spring 0.319 Wire Size - Left Hand Wind
- Commercial Torsion Spring 0.319 Wire Size - Right Hand Wind
- Commercial Torsion Spring 0.331 Wire Size - Left Hand Wind
- Commercial Torsion Spring 0.331 Wire Size - Right Hand Wind (Copy)
- Commercial Torsion Spring 0.343 Wire Size - Left Hand Wind
- Commercial Torsion Spring 0.343 Wire Size - Right Hand Wind
- Commercial Torsion Spring 0.362 Wire Size - Left Hand Wind
- Commercial Torsion Spring 0.362 Wire Size - Right Hand Wind
- Commercial Torsion Spring 0.375 Wire Size - Left Hand Wind
- Commercial Torsion Spring 0.375 Wire Size - Right Hand Wind
- Commercial Torsion Spring 0.393 Wire Size - Left Hand Wind
- Commercial Torsion Spring 0.393 Wire Size - Right Hand Wind
- Commercial Torsion Spring 0.406 Wire Size - Left Hand Wind
- Commercial Torsion Spring 0.406 Wire Size - Right Hand Wind
Commercial torsion springs available in 2-5/8" , 3-3/8 and 3-3/4" inside diameter. Made from oil-tempered steel for high-cycle commercial doors, the kind you see on warehouses, loading docks, and service bays that open and close dozens of times a day. The dual cone design keeps the spring centered on the shaft so tension stays even. These aren't residential springs, they're heavier and wound differently. You'll need your exact spring specs to order the right one: wire size, length, inside diameter, and whether it's left or right wound. Getting those numbers wrong means the door won't balance. Bore size option of 1.25" is available only for 3-3/4" inside diameter, that is why picking 1.25" option with 2-5/8" will result in variation reset.