# M0024 what is the purpose of the holes on the back of the camera?

Source: https://forum.modalai.com/topic/5194/m0024-what-is-the-purpose-of-the-holes-on-the-back-of-the-camera
Category: ESCs, Sensors and Accessories (https://forum.modalai.com/category/15/escs-sensors-and-accessories)
Tags: image-sensor
Posted: 2026-05-04 23:49:45 UTC by mtcbj
Replies: 1 · Views: 843

## mtcbj · 2026-05-04 23:49:45 UTC

Hello. I have a M0024-2 camera, and am considering mounting the camera to my hardware by bonding the metallic square surface opposite the lens to my hardware. However, there are 4 small holes present on this face which I don't see in the smaller M0014 camera I also have. What is the purpose of these holes? I want to make sure I wouldn't be doing something detrimental by covering that face in epoxy (e.g. if they are for air venting or something like that). 

![M0024.jpg](https://forum.modalai.com/assets/uploads/files/1777938541450-m0024.jpg)

## Reply by Vinny (ModalAI staff) · 2026-05-05 13:29:40 UTC

Hi @mtcbj 
That is the flex stiffener. Our older image modules used stainless steel. Some of our newer modules use laminate.
Those holes are likely just flex/FPC air escapes during the backer lamination process. They do not provide any functional purpose after assembly.
I see no issue filling them with epoxy.
Hope that helps!