Hormann Garage Door Spring (compatible with) No. 777

Outer Spring

Hörmann garage door spring no. 777 – OUTER

Spring designed for Hörmann garage doors marked with the number 777 / N777 – outer version (mounted on the outer shaft).

Key features

• Version: OUTER – not to be confused with the inner version (e.g., 7707)
• Spring number: 777 / N777
• 1 piece in the offer
• Proven replacement – provided the number and end connections match

How to ensure it fits (2 min check = fewer returns)

Before purchasing, compare:

• number/marking on the spring (777 / N777),
• mounting type: outer (outer shaft),
• shape and design of the ends / hooks,
• if possible: basic dimensions (wire diameter, spring diameter, length).

If you have any doubts – the most reliable method is to compare a photo of your spring with ours (especially the ends).

Application

• Hörmann garage doors requiring a spring marked 777 / N777 in the outer version.

Safety (important)

Door springs operate under high tension. Installation/tensioning should be performed in accordance with safety regulations and preferably by an experienced person.

Need more springs/different sizes?

We invite you to check our other auctions and to 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 tension, compression, torsion, spiral springs, as well as rings, protective casings, and wire elements – according to a sample, drawing, or description.

We handle both single pieces and series production. We focus on dimensional repeatability, quality control, and suitability for the application.