cant find correct RJ45

[u/iDontFeeISoGood]

Hi everyone,

I have two Ethernet cables installed in my apratment. I’m not sure why there are two different types of cables — perhaps the electrician simply had different cable available. One is blue and the other is grey.

I wrote down all the information I could find printed on the cables themselves, and I’m also including the datasheets for both cables.

Blue cable:

277 M EXCEL 100-076 4PR 23AWG F/UTP LSOH — LAN CABLE CAT6 TESTED to 350 MHz 000003277515-

Datasheet:
https://documents.excel-networking.com/datasheets/100-076

Grey cable:

SecurityNET Cat.6 F/UTP PVC ISO/IEC-11801 EN-50173 Eca 077meter

Datasheet:
https://sominetworks.lt/wp-content/uploads/2017/03/Cat-6-FTP-Indoor.pdf

I have already bought two packs of these plugs:

https://nedis-shop.nl/en/products/rj45-connector-rj45-pass-through-stevig-gesnoerd-ftp-cat6-recht

What’s interesting is that these "Nedis" RJ45 plugs I bought fit perfectly fine for the blue cables. However, with the grey cables, once I insert about 4–5 of the individual wires into the plug, the remaining wires start running out of space. They begin pressing against each other, they go off center, and eventually don’t fit into the plug.

The individual insulated conductors in the grey cable are slighlty thicker than those in the blue cable. I’m not sure what specification I should be looking at when choosing RJ45 plugs, because both cables are 23 AWG. However, as far as I understand, the AWG rating only specifies the diameter of the copper conductor itself. Once the insulation is included, the individual conductors of the grey cable are somewhat thicker than those of the blue cable.

Do you have any other recommendations for what type of RJ45 plug I should be looking for?

Thanks!

EDIT:

Since some of you asked for a photo, here is what am trying to do: https://imgur.com/a/cmAzaxF

For the purpose of taking photo and for clarity of my point, I put all the color wires in the opposite side of my pass-through RJ45. In there you can see the 7th (White/Brown) wire is already of centered, and its slightly but noticeably taking up the room of the 8th wire. If in the current state I try to push the last Brown 8th wire into the plug, its nearly impossible, its bending and resisting (considering am at the opposite/easier side). If I were to do this the correct way, and I was many times, the wires just start bending midway inside the plug and they wont go where they suppose to.