Heavy Duty Extension Springs Featuring Quarter Inch Wire And 1.5 Outer Diameter For 16 Inch Length Hook To Hook Steel Pair Built Tough For Garage Doors Boss Grade Hardware With No Sweat Performance

Heavy Duty Extension Springs Pack Of Two Strong Lift
✔️ Quarter inch thick steel wire paired with one point five inch coil size

This robust pair of extension springs delivers consistent tension for residential garage doors and industrial lifting mechanisms. Designed for direct replacement on heavy frames, the sturdy hooks attach quickly to mounting plates without extra adapters.

✅ Quarter inch (6.35 mm) thick steel wire handles repeated pull cycles without deforming
✅ One point five inch (38 mm) outer coil frame prevents adjacent parts from touching
✅ Fifteen half inch (394 mm) hook to hook span covers most residential door track requirements
✅ Total sixteen inch (406 mm) reach gives enough room for heavy panel lifting forces

💡 What sizing rules apply when replacing worn commercial or residential extension springs?

The correct upgrade proves handy when you match factory load ratings and hook shapes exactly. Pull these specs to keep installations tight:

- Track wire diameter against plate tags to balance tension across double door openings - Measure free length from pin center to pin center so coils compress correctly under strain - Align hook orientation with existing clevis pins to avoid bending brackets during mounting✝️