diff --git a/common b/common
index 890aa4f..257ddc1 160000
--- a/common
+++ b/common
@@ -1 +1 @@
-Subproject commit 890aa4f1633ba5507bd23e37dc2333de8ce5ae45
+Subproject commit 257ddc18bf17a2943d1cb465c68cb0949f8274b1
diff --git a/sprocketed_roller_var.scad b/sprocketed_roller_var.scad
index 9d8b3b9..91be7e8 100644
--- a/sprocketed_roller_var.scad
+++ b/sprocketed_roller_var.scad
@@ -154,7 +154,7 @@ module sprocketed_roller_body (pos = [0, 0, 0], rot = [0, 0, 0], sprockets = 8,
     }
 }
 
-module sprocketed_roller (pos = [0, 0, 0], rot = [0, 0, 0], sprockets = 8, bevel = false, reinforced = false, bolts = false, model = "", set_screw_top = false) {
+module sprocketed_roller (pos = [0, 0, 0], rot = [0, 0, 0], sprockets = 8, bevel = false, reinforced = false, bolts = false, model = "", set_screw_side = true, set_screw_top = false) {
     D = (FrameC * sprockets) / PI;
     difference () {
         union () {
@@ -165,7 +165,8 @@ module sprocketed_roller (pos = [0, 0, 0], rot = [0, 0, 0], sprockets = 8, bevel
             translate(pos) rotate(rot) translate([0, 0, 10]) gearbox_motor_shaft_void();
             if (set_screw_top) {
                 translate(pos) rotate(rot) rotate([180, 0, 0]) m3_bolt_void([0, 0, -11]);
-            } else {
+            }
+            if (set_screw_side) {
                 translate(pos) rotate(rot) m3_nut_void(pos=[D/4, 0, 8.5], rot = [90, 0, 90], H = D/2);
             }
         }
@@ -191,9 +192,7 @@ module sprocketed_roller_reinforced (pos = [0, 0, 0], rot = [0, 0, 0], sprockets
 LIBRARY = false;
 PART = "sprocketed_roller_reinforced";
 if (!LIBRARY && PART == "sprocketed_roller_reinforced") {
-    rotate([180, 0, 0]) sprocketed_roller(sprockets = 18, bevel = false, model = "gearbox_motor", reinforced = true, bolts = true, set_screw_top = true);
+    rotate([180, 0, 0]) sprocketed_roller(sprockets = 18, bevel = false, model = "gearbox_motor", reinforced = true, bolts = true, set_screw_top = true, set_screw_side = true);
 } else if (!LIBRARY && PART == "sprocketed_wheel") {
     rotate([180, 0, 0]) color("red") sprocketed_roller_reinforced(sprockets = 18, bevel = false, model = "gearbox_motor", bolts = true);
 }
-
-