New Astro back Lid screw

[erzane]

Hi everyones,
I'm looking for the original screws used for the back lid (CQN-1205) of the new astro. As far as I know they are black, M4 X 12mm lenght (TMP PRF SCR TH BLK M4 X 12). I guess hey are torx or security torx.
Thank you!

 

[kikaso]

For what it’s worth, the screws you’re looking for have truss heads and not pan like most of the other screws on the NAC. The difference is that pan head screws sit proud unlike truss which are a little more (though not completely) flush. The idea being that truss head screws are more difficult to remove with pliers compared to pan head screws hence the security bit.

Edit: something like these but in black

 

[erzane]

Thanks for the link and explanation. Fortunately Ive got one of these. As I can see, the japanese standard says ''PIN-BUTTON HEAD 6-LOBE BOLT Stainless A2'' :
https://www.saima.co.jp/en/Product/size.php?type=1&Part=tx01

Variant with smaller lobe (Truss Head 6-Lobe Machine Screw) :
https://www.saima.co.jp/en/Product/6-Lobe-Screws.php

 

[erzane]

About the ''FL LID'' (CQN-1105X). I've got three type of screw :
5x cross truss head tap screw type 2 M4 x 10mm
2x cross truss head machine screw M4 x 15mm
2x 6 lobe button head cap screw M4 x 15mm

What kind of screws do you have on your NAC FL Lid? Black or natural?

 

[kikaso]

I have mismatched screws so I wouldn’t know what came originally.

 

[erzane]

After searching, there are five plus two main screws for the fl lid (cqn-1105x), they are :
- 5x tapping screw cross truss head type 2 w/cut (b1) crome m4 x 10
- 2x machine screw cross truss head crome m4 x16 (these fill up the two extra holes at the bottom of the Lid)
Then, there are two other screws which hold the instruction panel (cqn-001). These are : 6-lobe truss head machine screw crome m4 x 16.
The screws holding both parts of the instruction panel (thin and thick sheets) are still m4 crome 6-lobe but shorter (8mm) and they comes with a crome cap nut type 3.

Ps. the only black plated screws are based on the back lid (cqn-1205) and they are also pin 6-lobe.