diff --git a/.gitignore b/.gitignore
index 23692dcb..4622f285 100755
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,5 @@
 *.FCStd1
 *.fcstd2
 *.FCStd2
+*.FCBak
 Private
diff --git a/Mechanical Parts/Mountings/LM8UU/LMXXXUU.FCStd b/Mechanical Parts/Mountings/LM8UU/LMXXXUU.FCStd
index 93e342d4..a6cdf331 100644
Binary files a/Mechanical Parts/Mountings/LM8UU/LMXXXUU.FCStd and b/Mechanical Parts/Mountings/LM8UU/LMXXXUU.FCStd differ
diff --git a/Mechanical Parts/Mountings/README.md b/Mechanical Parts/Mountings/README.md
index 8cd11b21..71441d36 100644
--- a/Mechanical Parts/Mountings/README.md	
+++ b/Mechanical Parts/Mountings/README.md	
@@ -77,10 +77,14 @@ Now with the 0.20 version is possible to use a `Configuration table`  to create
 
 ![LMXXXUU](LM8UU/LMXXXUU.png)
 
-### SC8UU
+### SC8UU, SCXXXUU
+
+Parametric design using a `Configuration table`  to create multiple variants of the same model. Read about [Configuration tables here](https://wiki.freecadweb.org/Spreadsheet_Workbench#Configuration_tables).
 
 ![SC8UU](SC8UU/SC8UU.png)
 
+![SCXXXUU](SC8UU/SCXXXUU.png)
+
 ## Pillow blocks
 
 These pillow blocks are usually used in assemblies with 2020 profiles.
@@ -136,4 +140,6 @@ Don´t forget to share your modifications with the community.
 
 In the `T_type_square_nut.FCStd` file you will find the 20S-M3, 20S-M4, 20S-M5, 20S-M6, 30S-M4, 30S-M5, 30S-M6, 30S-M8, 40S-M4, 40S-M5, 40S-M6, 40S-M8, 45S-M4, 45S-M5, 45S-M6, 45S-M8 and 45S-M10 models (configurations). Learn more about the [Configuration tables here](https://wiki.freecadweb.org/Spreadsheet_Workbench#Configuration_tables).
 
+This T-nut and other are now available in the [Fasteners WB](https://www.freecadweb.org/wiki/Fasteners_Workbench).
+
 ![Slot T square nut](Slot_T_nuts/T_type_square_nut.png)
diff --git a/Mechanical Parts/Mountings/SC8UU/SCXXXUU.FCStd b/Mechanical Parts/Mountings/SC8UU/SCXXXUU.FCStd
new file mode 100644
index 00000000..e2ec59c1
Binary files /dev/null and b/Mechanical Parts/Mountings/SC8UU/SCXXXUU.FCStd differ
diff --git a/Mechanical Parts/Mountings/SC8UU/SCXXXUU.png b/Mechanical Parts/Mountings/SC8UU/SCXXXUU.png
new file mode 100644
index 00000000..de4f3372
Binary files /dev/null and b/Mechanical Parts/Mountings/SC8UU/SCXXXUU.png differ