HORMANN Garage Door Spring no. 777 set of 4 outer + 4 inner

Hormann Garage Door Spring No. 777 (replacement)
4 × outer springs + 4 × inner springs - complete set (8 pcs)
? What do you get?
A complete set of springs for a full replacement on both sides of the gate:
- 4 × L665 outer springs – mounted on the outer shaft
- 4 × L705 inner springs – mounted inside the cassette
This is a complete set, ready for installation in a gate with the designation no. 777 / N777.
? Why buy from us?
- Complete set for two sides of the gate (8 pieces)
- Compatible with Hörmann N777
- High quality workmanship – factory dimensional repeatability
- You replace the entire set at once – less frequent need for repeated service intervention
- Product from a technical spring manufacturer – Max Serwis
❗ Important information about installation
Gate springs operate under high tension. Installation should be performed by an experienced person or service technician.
In our previous listing, we offered a set of 4 springs (2 outer + 2 inner) — a set for one side of the gate.
This listing is a full set for two sides — for gates that have springs on both sides.

Need more springs/different sizes?
Please visit our other auctions and contact us directly!!!
MANUFACTURER
You are buying directly from the spring manufacturer!!
MANUFACTURER OF TECHNICAL SPRINGS
We are a manufacturer of technical springs and wire products. We produce extension, compression, torsion, spiral springs, as well as rings, protective casings and wire elements – according to a sample, drawing or description.
We fulfill both single pieces and serial production. We focus on dimensional repeatability, quality control, and suitability for application.

