During this build of the Eaglemoss 1:8 scale Back to the Future DeLorean partwork, we will use more than thirty different kinds of screws. They vary in types and sizes, but are all Phillips-head and appear to be metric. Eaglemoss designates each kind of screw with a two letter code, such as AP, BP, AM, CM, etc. The first letter indicates the type/size of screw and the second letter indicates which material that screw is driven into:
- P = Plastic
- M = Metal
Before I started my model build, I heard that a few of these screws can be difficult to install (specifically some of the metal screws). I figured that I would need to purchase a metric tap set in case I needed to add threads to some of the holes. However, to use a tap set effectively, I needed to know the screw diameter and thread pitch of every single screw.
Using a set of precision calipers and a thread pitch gauge, I measured all of the screws I have encountered so far. It turns out that most of the screws are not standard metric sizes, so a tap set would be pretty much useless. This means the best way I’ve found to pre-thread a hole is to use the appropriate screw, drive it in, and back it out, before attaching the part.
I thought the information I collected was still useful, so I created this page to share it. The tables below contain all of the screw measurements I have collected so far in my build. I also included the screwdriver bit sizes I found to work best for each screw (Eaglemoss only supplies #0 and #000 screwdrivers, which it turns out, are not ideal). Any missing data in the tables will be added when I receive those screws in later issues.
Please note that these values are based on my own observations, so they may not be perfect (use at your own risk).
Screw Sizes - Plastic (in mm)
Screw Sizes - Metal (in mm)
|Head Type||Head Diameter||Head Height||Thread Diameter||Thread Length||Thread Pitch|