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