THE SCREWS

During the build of the 1:8 scale Back to the Future DeLorean model from Eaglemoss, you will use more than thirty different kinds of screws. They vary in types and sizes, but are all Phillips-head, anodized black, 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 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)

Name
Image
Screwdriver
Bit Size
Head
Type
Head
Diameter
Head
Height
Thread
Diameter
Thread
Length
Thread
Pitch
AP
#1Pan3.001.001.754.00.7
BP
#1Pan3.501.302.304.01.0
CP
#00Pan2.000.751.253.00.5
DP
#1Flange4.501.001.752.50.7
EP
#1Pan3.001.002.004.50.8
FP
#1Pan3.501.252.304.50.9
GP
#1Pan3.001.002.004.00.8
HP
#1Flange5.801.252.404.00.9
IP
#1Pan3.001.001.753.00.7
JP
#000Flange4.200.801.453.00.5
KP
#000Countersunk2.800.801.603.50.7
LP
#00Pan3.001.001.755.00.7
MP#000Pan2.000.901.203.00.5
NP#000Pan2.400.801.603.50.6
OP
PP
QP
RP

Screw Sizes - Metal (in mm)

Name
Image
Screwdriver
Bit Size
Head TypeHead DiameterHead HeightThread DiameterThread LengthThread Pitch
AM
#1Pan3.01.01.73.50.4
BM
#1Pan3.01.02.05.00.4
CM
#1Pan3.251.02.08.00.4
DM
#1Pan3.751.52.34.50.4
EM
#1Flange6.51.52.34.00.4
FM
#0Flange5.51.02.04.00.4
GM
#1Flange5.51.52.34.00.4
HM
#1Pan3.751.52.39.50.4
IM
#1Pan3.51.252.318.50.4
JM
#1Pan3.751.252.34.00.4
KM
#000Pan3.01.01.73.00.4
LM
#000Pan3.11.02.07.00.4
MM
#000Pan2.50.751.54.00.4
NM
#1Pan3.11.02.04.00.4
OM
#1Pan4.11.42.65.00.4
PM
#000Flange4.51.01.52.50.4
QM
#000Pan2.40.751.53.50.4
RM#1Pan4.61.62.96.00.4
SM#00Pan3.01.01.75.00.4
TM