diff --git a/tests/scs_bearing_blocks.scad b/tests/scs_bearing_blocks.scad
index 093870e..78d6500 100644
--- a/tests/scs_bearing_blocks.scad
+++ b/tests/scs_bearing_blocks.scad
@@ -23,12 +23,12 @@ include <../vitamins/scs_bearing_blocks.scad>
 
 module scs_bearing_blocks()
     layout([for(s = scs_bearing_blocks) 2 * scs_size(s)[0]]) {
-        sheet_thickness = 5;
-        scs_bearing_block_assembly(scs_bearing_blocks[$i], sheet_thickness);
+        part_thickness = 5;
+        scs_bearing_block_assembly(scs_bearing_blocks[$i], part_thickness);
 
         if($i > 0) // skip $i==0, since no SCS6LUU long variant to match SCS6UU
             translate([0, 60])
-                scs_bearing_block_assembly(scs_bearing_blocks_long[$i - 1], sheet_thickness);
+                scs_bearing_block_assembly(scs_bearing_blocks_long[$i - 1], part_thickness);
     }
 
 if($preview)
diff --git a/vitamins/scs_bearing_block.scad b/vitamins/scs_bearing_block.scad
index 95a3888..81c3765 100644
--- a/vitamins/scs_bearing_block.scad
+++ b/vitamins/scs_bearing_block.scad
@@ -133,7 +133,7 @@ module scs_bearing_block_hole_positions(type) {
                 children();
 }
 
-module scs_bearing_block_assembly(type, sheet_thickness, screw_type, nut_type) { //! Assembly with screws and nuts in place
+module scs_bearing_block_assembly(type, part_thickness, screw_type, nut_type) { //! Assembly with screws and nuts in place
 
     scs_bearing_block(type);
 
@@ -143,7 +143,7 @@ module scs_bearing_block_assembly(type, sheet_thickness, screw_type, nut_type) {
     washer_thickness = washer_type ? washer_thickness(washer_type) : 0;
 
     G = scs_block_side_height(type);
-    nut_offset = G + sheet_thickness + nut_thickness(nut_type) + washer_thickness;
+    nut_offset = G + part_thickness + nut_thickness(nut_type) + washer_thickness;
     screw_length = screw_longer_than(nut_offset);
 
     scs_bearing_block_hole_positions(type) {