This USB mount cable is come with the nuts and covers. And it is water proof.
Duttek 2M 2*USB 2.0 cable Extension Mount（ABS mold）
2M Long Dash Mount USB 2.0 Aux Extension.
In car dashboard flush mount USB 2.0 extension lead cable
You can use this USB mount drill a 13*25MM rectangle hole to install this cable

Technical Details

Product Details

Package Dimensions
Width : 3.94 inch
Height : 3.15 inch
Length : 5.91 inch

Shipping Weight: 0 ounce (View shipping rates and policies)

ASIN : B074DT8BB1

Product Description

Duttek USB Panel Mount cable - Duttek 2M 2*USB 2.0 cable Extension Mount（ABS mold）
Specification:?
1、Works with vehicles with USB 2.0 Input?。
2、Use an existing hole or cut a hole in your dashboard and clip in the socke。
3、Designed for in car but can be used for any application to flush mount it to your vehicle''s dash.?
4、Approx 2m long cable。?
5、Bracket included to allow mounting of socket on your car''s dashboard.?
6、Can be plugged into any car stereo equipped with a AUX input.?

Mounting options:?
1) Flush mount the socket to your dashboard or other surface?
2) Mount to dash using the bracket and screws see the picture Can be plugged into any car stereo equipped with a AUX input.?

WARRANTY:
Limited One-Year Warranty and Lifetime Product Support