diff --git a/Mechanical Parts/4-wire thread/README.md b/Mechanical Parts/4-wire thread/README.md
index af4618bc..0df0aa5c 100644
--- a/Mechanical Parts/4-wire thread/README.md	
+++ b/Mechanical Parts/4-wire thread/README.md	
@@ -1,5 +1,5 @@
 ## Mechanical Parts - 4 wire thread 79x21
-![](Captura de pantalla de 2016-12-31 13:12:02.png)
-![](Captura de pantalla de 2016-12-31 14:13:15.png)
-![](Captura de pantalla de 2016-12-31 14:14:07.png)
-![](Captura de pantalla de 2016-12-31 14:18:17.png)
+![](screenshot-01.png)
+![](screenshot-02.png)
+![](screenshot-03.png)
+![](screenshot-04.png)
diff --git a/Mechanical Parts/4-wire thread/Captura de pantalla de 2016-12-31 14:13:15.png b/Mechanical Parts/4-wire thread/screenshot-02.png
similarity index 100%
rename from Mechanical Parts/4-wire thread/Captura de pantalla de 2016-12-31 14:13:15.png
rename to Mechanical Parts/4-wire thread/screenshot-02.png
diff --git a/Mechanical Parts/4-wire thread/Captura de pantalla de 2016-12-31 14:14:07.png b/Mechanical Parts/4-wire thread/screenshot-03.png
similarity index 100%
rename from Mechanical Parts/4-wire thread/Captura de pantalla de 2016-12-31 14:14:07.png
rename to Mechanical Parts/4-wire thread/screenshot-03.png
diff --git a/Mechanical Parts/4-wire thread/Captura de pantalla de 2016-12-31 14:18:17.png b/Mechanical Parts/4-wire thread/screenshot-04.png
similarity index 100%
rename from Mechanical Parts/4-wire thread/Captura de pantalla de 2016-12-31 14:18:17.png
rename to Mechanical Parts/4-wire thread/screenshot-04.png