Arrma Screw Part Numbering

[Relimar]

Been building up my Typhon to Infraction parts car, and have basically figured out Arrma's Part Numbering scheme for basic screws:

AR72 - all screws prefix

Next digit is the head type:
1= button head
2= flat head
3= cap head
4= set screw

Next digit is metric diameter:
2=M2
3= M3
4= M4 etc

Last two digits are length
10, 12, 16 etc

Example: AR722312:
AR72=screw, 2=flat head, 3=M3, 12=12mm
M3x12mm flat head

 

[danny1202]

That’s brilliant mate, do you know if you can get a full nut, bolt and screw set in a kit or do you have to get them all individually?

 

[Relimar]

That’s brilliant mate, do you know if you can get a full nut, bolt and screw set in a kit or do you have to get them all individually?

I've only seen all needed hardware together when it's some specific component, infraction e-brake etc. Otherwise all individual, tiny packages of screws.

I found bulk M3 & M4 nylon lock nuts on Amazon and bulk alloy black oxide on McMaster, but they rust quicker than oem Arrma

 

[Johnny b]

I'm not good at math.

 

[Dan B.]

That’s brilliant mate, do you know if you can get a full nut, bolt and screw set in a kit or do you have to get them all individually?

Not as cost effective for you being in the UK, but Jenny’s RC sells complete model specific sets that were takeoffs. Have you tried Bad Touch Breakers? They’re in the UK, right?

 

[slick2500]

You do realize that this information is already in a sticky at the top of this section right? https://www.arrmaforum.com/threads/arrma-screw-part-number-decoder-mostly.59847/

 

[Relimar]

You do realize that this information is already in a sticky at the top of this section right? https://www.arrmaforum.com/threads/arrma-screw-part-number-decoder-mostly.59847/

I did not realize that. lol sry for double posting, I was like whoaa the numbers line up

 

[Hammer Down]

You do realize that this information is already in a sticky at the top of this section right? https://www.arrmaforum.com/threads/arrma-screw-part-number-decoder-mostly.59847/

 

[Relimar]

To be fair, I was in the process of making a very similar and 25% less accurate graph

 

[danny1202]

Not as cost effective for you being in the UK, but Jenny’s RC sells complete model specific sets that were takeoffs. Have you tried Bad Touch Breakers? They’re in the UK, right?

I’ve just checked out bad touch, they don’t seem to have a website, only social media pages which I won’t participate in unfortunately.

I mite order some from jennys, there’s a few bits I could do with that are out of stock over here.