diff --git a/Power_bar_screwdown/power_bar_screwdown.scad b/Power_bar_screwdown/power_bar_screwdown.scad
index 904ce0a..276820d 100644
--- a/Power_bar_screwdown/power_bar_screwdown.scad
+++ b/Power_bar_screwdown/power_bar_screwdown.scad
@@ -80,7 +80,7 @@ module shell(){
 
 module screwdown(){
 	difference(){
-		cube([15+radius_side,15,wall_thickness]);
+		cube([15+(width_longest-width_shortest)/2+wall_thickness,15,wall_thickness]);
 		translate([7.5,7.5,0]){
 			screw_hole();
 		}
@@ -96,13 +96,24 @@ module screw_hole() {
 	translate([0,0,-20]){
 		cylinder(h=30, r=thread/2, $fn=FN);
 	}
-	translate([0,0,btn-(thread/2)]){
+	translate([0,0,wall_thickness-(thread/2)]){
 		cylinder(h=head-(thread/2), r1=thread/2, r2=head);
 	}
 }
 
+module assembly(){
+	shell();
+	translate([-15,0,- height/2 -wall_thickness]){
+		screwdown();
+	}
 
-shell();
-translate([-15,0,-(height+wall_thickness*2)/2]){
-	screwdown();
+	translate([width_longest+wall_thickness*2+15,0,- height/2 -wall_thickness]){
+		mirror([1,0,0]){
+			screwdown();
+		}
+	}
+}
+
+translate([0,0,height/2+wall_thickness]){
+	assembly();
 }