So, I opened a ticket a while ago saying that the deagle and the bk-18 had texture bugs, you replied and said they would fix it, it turns out that none of them were fixed, you basically put a new specular texture, but it continues with the texture with a bug, and I can help better than complaining, so here are the correct textures of the screws what you need to do is basically check if the texture is correct, open photoshop and place the screws on top, it will avoid a lot work for you and the deagle bug will be fixed, bk i can't do much, since you guys changed the texture mapping, anyway it will be buggy.
Examples:
https://imgur.com/qkk0RG8
https://imgur.com/9mF4fE8
fixed screws
DE Gold: https://imgur.com/VGM2xg7
DE Gray: https://imgur.com/KpQ8Xcl