# Thrusters assembly - M3x16 does not fit in the thruster
**URL:** https://discuss.bluerobotics.com/t/thrusters-assembly-m3x16-does-not-fit-in-the-thruster/6125
**Category:** Thrusters and Motors
**Created:** [October 3, 2019, 5:42pm UTC](https://discuss.bluerobotics.com/t/thrusters-assembly-m3x16-does-not-fit-in-the-thruster/6125 "2019-10-03T17:42:40Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@dmaslov](https://discuss.bluerobotics.com/u/dmaslov)
#### Post date: [October 3, 2019, 5:42pm UTC](https://discuss.bluerobotics.com/t/thrusters-assembly-m3x16-does-not-fit-in-the-thruster/6125/1 "2019-10-03T17:42:40Z")
Hello community,
I am assembling my first BlueROV2 and having a lot of fun, however I got a silly problem. Even though everything in the assembly manual is crystal clear, the thrusters assembly stage puzzles me as it requires to mount thrusters 1,2,3,4 with M3x16 screws, which I have in the box. The problem is that these screws simply do no fit in the holes of neither the central panels nor the thrusters, as the diameter is too large, while the length is correct. However, the M3x12 for thrusters 5 and 6 perfectly fit and mount easily. Of course it is not a big deal to buy correct screws, but maybe I miss something?.. What is the problem?..
Thank you for your attention and time.
Best regards,
Dmytro.
---
### Author:  [@adam](https://discuss.bluerobotics.com/u/adam)
#### Post date: [October 3, 2019, 7:45pm UTC](https://discuss.bluerobotics.com/t/thrusters-assembly-m3x16-does-not-fit-in-the-thruster/6125/2 "2019-10-03T19:45:55Z")
Hi @dmaslov,
It sounds like some of the screws in your kit may have been mispacked, sorry about that! Please contact [support@bluerobotics.com](mailto:support@bluerobotics.com) with pictures and your order number, we’ll get this fixed for you.
-Adam
---
### Author:  [@dmaslov](https://discuss.bluerobotics.com/u/dmaslov)
#### Post date: [October 8, 2019, 10:12am UTC](https://discuss.bluerobotics.com/t/thrusters-assembly-m3x16-does-not-fit-in-the-thruster/6125/3 "2019-10-08T10:12:21Z")
Thank You Adam, we already bought another ones and they perfectly fit. No worries!
---
### Author:  [@rjehangir](https://discuss.bluerobotics.com/u/rjehangir)
#### Post date: [October 10, 2019, 5:24pm UTC](https://discuss.bluerobotics.com/t/thrusters-assembly-m3x16-does-not-fit-in-the-thruster/6125/4 "2019-10-10T17:24:44Z")