diff --git a/parts_list/screws.md b/parts_list/screws.md
index 2fd13a4a..42ac035e 100644
--- a/parts_list/screws.md
+++ b/parts_list/screws.md
@@ -6,6 +6,7 @@ All of the below are included in the [parts list](parts_list/README.md). This do
 
 | subassembly  | nb  | length           | type   | purpose                        | multiplier | total |
 | ------------ | --- | ---------------- | ------ | ------------------------------ | ---------- | ----- |
+| wheel        | 3   | **16** or 18     | socket | wheel - motor                  | 6          | 18    |
 | wheel        | 4   | 10               | either | motor - channel                | 6          | 24    |
 | wheel        | 3   | 10               | button | bracket - vert. extrusion      | 6          | 18    |
 | wheel        | 3   | **10** or 12     | socket | wheel - motor axis clamp       | 6          | 18    |
@@ -45,7 +46,7 @@ Total per category and length:
 | socket | [8](https://www.gobilda.com/2800-series-zinc-plated-steel-socket-head-screw-m4-x-0-7mm-8mm-length-25-pack/)   | 30 (+8)      | 2                     |
 | socket | [10](https://www.gobilda.com/2800-series-zinc-plated-steel-socket-head-screw-m4-x-0-7mm-10mm-length-25-pack/) | 42 (+48)     | 4                     |
 | socket | [12](https://www.gobilda.com/2800-series-zinc-plated-steel-socket-head-screw-m4-x-0-7mm-12mm-length-25-pack/) | 20           | 1                     |
-| socket | [16](https://www.gobilda.com/2800-series-zinc-plated-steel-socket-head-screw-m4-x-0-7mm-16mm-length-25-pack/) | 28 (+8)      | 2                     |
+| socket | [16](https://www.gobilda.com/2800-series-zinc-plated-steel-socket-head-screw-m4-x-0-7mm-16mm-length-25-pack/) | 46 (+8)      | 2                     |
 | socket | [20](https://www.gobilda.com/2800-series-zinc-plated-steel-socket-head-screw-m4-x-0-7mm-20mm-length-25-pack/) | 12           | 1                     |
 
 Values between parentheses are the additional screws that would need to be ordered if all 'either' types with same length are used in that type. In general, socket screws are preferred because of their resistance to stripping and use of a larger hex key.