diff --git a/nhf/touhou/houjuu_nue/electronics.py b/nhf/touhou/houjuu_nue/electronics.py
index d29fd17..da980db 100644
--- a/nhf/touhou/houjuu_nue/electronics.py
+++ b/nhf/touhou/houjuu_nue/electronics.py
@@ -493,12 +493,10 @@ class ElectronicBoard(Model):
     length: float = 70.0
     width: float = 170.0
     mount_holes: list[Hole] = field(default_factory=lambda: [
-        Hole(x=30, y=80),
-        Hole(x=30, y=0),
-        Hole(x=30, y=-80),
-        Hole(x=-30, y=80),
-        Hole(x=-30, y=0),
-        Hole(x=-30, y=-80),
+        Hole(x=25, y=70),
+        Hole(x=25, y=-70),
+        Hole(x=-25, y=70),
+        Hole(x=-25, y=-70),
     ])
     panel_thickness: float = 25.4 / 16
     mount_panel_thickness: float = 25.4 / 4
diff --git a/nhf/touhou/houjuu_nue/wing.py b/nhf/touhou/houjuu_nue/wing.py
index 03867f4..e0fbb20 100644
--- a/nhf/touhou/houjuu_nue/wing.py
+++ b/nhf/touhou/houjuu_nue/wing.py
@@ -462,22 +462,11 @@ class WingProfile(Model):
             result.add(self.electronic_board.assembly(), name="electronic_board")
             for hole in self.electronic_board.mount_holes:
                 assert hole.tag
-                nut_name = f"electronic_board_{hole.tag}_nut"
-                (
-                    result
-                    .addS(
-                        self.electronic_board.nut.assembly(),
-                        name=nut_name)
-                    .constrain(
-                        f"electronic_mount?{hole.rev_tag}",
-                        f'{nut_name}?top',
-                        "Plane"
-                    )
-                    .constrain(
-                        f"electronic_mount?{hole.tag}",
-                        f'electronic_board/{hole.tag}_spacer?bot',
-                        "Plane"
-                    )
+                result.constrain(
+                    f"electronic_mount2?{hole.tag}",
+                    f'electronic_board/{hole.tag}_spacer?top',
+                    "Plane",
+                    param=0
                 )
         return result.solve()