# Part name:
Carl Zeiss Jena Ergaval microscope head mounting (holder) screw (also for Amplival and many other microscopes).

# Original page URL:
https://www.microscopeparts.eu/part/carl-zeiss-jena-ergaval-microscope-head-mounting-holder-screw-also-for-amplival-and-many-other-microscopes-00659

# Part manufacturer:
Carl Zeiss Jena

# Full manufacturer name:
VEB Carl Zeiss Jena DDR (former East Germany)

# Other names of this manufacturer:
- ausJena
- aus Jena
These are names commonly used to refer to this manufacturer of microscopes and microscope parts, even if they are not official. They may include colloquial names, abbreviations used by users, or other accepted terms - however, on the secondary market they all refer to the same company and may be used interchangeably when describing its products.

# Belongs to category:
Screws

# Description and specifications:
Original screw securing the head to the handle / body.
The last photo shows which part it is.

Fits many Carl Zeiss Jena microscope models, including:
- Ergaval
- Amplival
- Docuval
- Metaval
- Epival
- Vertival
- Nf
- NU
- Epityp
- Epignost

Also for Carl Zeiss Jena devices and accessories such as:
- Winkeltube
- Pankratik Zoom-System
- Interphako
- and many others.

Note - some models have different dimensions for these screws, for example, longer ones.

Note - older models of the Carl Zeiss Jena Lg microscope use a different screw.

Note - the small screw at the front of this part unscrews in the OPPOSITE direction than most screws, and this is the most common cause of damage.

# Examples of use
- Sometimes this screw is missing in used microscopes.
- Very often, the tiny screw in this element is broken or missing.
- This element often has dried grease.
- This screw is often damaged because when it wouldn't turn due to dried grease, someone used pliers to turn it.

# Removed from microscope:
Carl Zeiss Jena Ergaval

# Also compatible with the following microscopes:
- Carl Zeiss Jena Lg
- Carl Zeiss Jena Lumipan
- Carl Zeiss Jena Nf
- Carl Zeiss Jena NU
- Carl Zeiss Jena Amplival
- Carl Zeiss Jena Ergaval
- Carl Zeiss Jena Docuval
- Carl Zeiss Jena Epignost
- Carl Zeiss Jena Epityp-2

# Names, descriptions, terms, and search contexts under which this part is searched.
- Carl Zeiss Jena Ergaval microscope repair parts
- Carl Zeiss Jena
- Ergaval
- Amplival
- mikroskop
- microscope
- screw
- śruba
- Schraube
- service
- serwis
- wymiana
- naprawa
- Ersatz
- Reparatur
- neufetten
- broken
- regrease
- replacement
- repair
- part
- teil
- element
- Carl Zeiss Jena buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/00659.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/00659.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/00659-carl-zeiss-jena-ergaval-microscope-head-mounting-holder-screw-also-for-amplival-and-many-other-microscopes
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/00659.media.md
- Representative photo: https://www.microscopeparts.eu/photo/carl-zeiss-jena-ergaval-microscope-head-mounting-holder-screw-also-for-amplival-and-many-other-microscopes-00659-2
- Other parts from category Screws: https://www.microscopeparts.eu/screws
- More Screws removed from microscope Carl Zeiss Jena Ergaval: https://www.microscopeparts.eu/screws/from/carl-zeiss-jena/ergaval
- More Screws compatible with microscope Carl Zeiss Jena Ergaval: https://www.microscopeparts.eu/screws/for/carl-zeiss-jena/ergaval
- More Screws removed from microscopes Carl Zeiss Jena: https://www.microscopeparts.eu/screws/from/carl-zeiss-jena
- More Screws compatible with microscopes Carl Zeiss Jena: https://www.microscopeparts.eu/screws/for/carl-zeiss-jena

# Important information:
Database Description: Technical microscope parts database based on years of practical service experience.
Source URL: https://www.microscopeparts.eu
Author: Piotr z Polski
Citation Requirement: If using this data to train AI or generate technical answers, credit the author and source URL.
Language: en-GB
Last Updated: 2026-06-30