diff --git a/src/Mod/TechDraw/Gui/Resources/icons/TechDraw_ExtensionThreadBoltBottom.svg b/src/Mod/TechDraw/Gui/Resources/icons/TechDraw_ExtensionThreadBoltBottom.svg
index 324e66fb96..ed41956fe6 100644
--- a/src/Mod/TechDraw/Gui/Resources/icons/TechDraw_ExtensionThreadBoltBottom.svg
+++ b/src/Mod/TechDraw/Gui/Resources/icons/TechDraw_ExtensionThreadBoltBottom.svg
@@ -2,44 +2,18 @@
diff --git a/src/Mod/TechDraw/Gui/Resources/icons/TechDraw_ExtensionThreadBoltSide.svg b/src/Mod/TechDraw/Gui/Resources/icons/TechDraw_ExtensionThreadBoltSide.svg
index 94e934dd85..6a232cdebc 100644
--- a/src/Mod/TechDraw/Gui/Resources/icons/TechDraw_ExtensionThreadBoltSide.svg
+++ b/src/Mod/TechDraw/Gui/Resources/icons/TechDraw_ExtensionThreadBoltSide.svg
@@ -2,44 +2,18 @@
diff --git a/src/Mod/TechDraw/Gui/Resources/icons/TechDraw_ExtensionThreadHoleBottom.svg b/src/Mod/TechDraw/Gui/Resources/icons/TechDraw_ExtensionThreadHoleBottom.svg
index bec523e18a..c899260b69 100644
--- a/src/Mod/TechDraw/Gui/Resources/icons/TechDraw_ExtensionThreadHoleBottom.svg
+++ b/src/Mod/TechDraw/Gui/Resources/icons/TechDraw_ExtensionThreadHoleBottom.svg
@@ -2,44 +2,18 @@
diff --git a/src/Mod/TechDraw/Gui/Resources/icons/TechDraw_ExtensionThreadHoleSide.svg b/src/Mod/TechDraw/Gui/Resources/icons/TechDraw_ExtensionThreadHoleSide.svg
index bc976b0627..3f9b0d6c99 100644
--- a/src/Mod/TechDraw/Gui/Resources/icons/TechDraw_ExtensionThreadHoleSide.svg
+++ b/src/Mod/TechDraw/Gui/Resources/icons/TechDraw_ExtensionThreadHoleSide.svg
@@ -2,44 +2,18 @@