Thank you! We have received the required details. We will work towards a resolution via private messages to ensure the security of your information. In the meanwhile, you may receive assistance or suggestions from the community members as well.
I have a 3881 TM with an ssd drive and want to install a second 3.5" hard drive - Dell 3.5" hard drives  don't come with retaining screws - the manual refers to 6-32 screws which seems to be to do with the kind of thread but doesn't indicate screw length and there are different sizes - 4.5, 6 and 7mm. Would be grateful for advice if anyone else has done this.
Installing a hard drive in an Inspiron 3881