Complex screw cutout

v1/scad/lib/screw_hole.scad

@@ -0,0 +1,30 @@
+use <hexagon.scad>
+
+module screw_hole(h) {
+    // Through screw hole
+    translate([0, 0, -0.01])
+    cylinder(h=h, d=3.2, $fn=50);
+
+    // Hex nut cutout 
+    translate([0, 0, h - 3])
+    hull() {
+        // Large hex nut
+        translate([0, 0, 3])
+        linear_extrude(0.01)
+        hexagon(inradius=2.8);
+
+        // Small hex nut
+        linear_extrude(0.01)
+        hexagon(inradius=2.55);
+    }
+
+    // Screw head cutout
+    translate([0, 0, h - 3])
+    cylinder(h=2.61, d=5.5, $fn=50);
+
+    // Bottom screw thread protrusion cutout
+    translate([0, 0, -0.01])
+    cylinder(h=1.01, d=4.4, $fn=100);
+}
+
+screw_hole(h=10);