---
title: "How is a spindle head fixed on a screw jack?"
url: "https://zimm.com/wiki/how-is-a-spindle-head-fixed-on-a-screw-jack/"
datePublished: "2025-07-24T13:31:02+00:00"
dateModified: "2025-11-17T13:40:27+00:00"
author: Jonathan Mildner
lang: en
canonical: "https://zimm.com/wiki/how-is-a-spindle-head-fixed-on-a-screw-jack/"
markdown: "https://zimm.com/ai/wiki/how-is-a-spindle-head-fixed-on-a-screw-jack.md"
categories: "Questions and answers about our products, Screw jacks"
---

At ZIMM, the spindle head is reliably secured using proven methods. Fixing is done with locking screws in combination with a threadlocker such as Loctite. For smaller sizes up to 100 kN, a locknut is also used to prevent unintentional rotation.

- Threadlocker to prevent loosening
- Locknut for dynamic loads
- Secure fit even under vibration