Fastronix Premium High Current 3/8" Thru Panel Battery Terminal Connectors USA Made

I’ve used other pass throughs that were more expensive but don’t compare in quality. I’m highly impressed with the build on these. I won’t use any other kind in the future.

As advertised and works great

Not really for your novice mechanic, but piece of cake to install. Drill, set, tighten, done. The posts are a little larger than typical, so you may need larger gauge wire terminals. You can see them in the upper left of my engine bay

Great quality.

Good construction, materials. I needed to get through a camper's firewall and these were two of the plastic threads too short. Had to spend an hour each one to modify the opening and the bolt. Probably deserves five stars, but all that work due to length had to be acknowledged.

Well made with good hardware included. Have purchased at least 5 of these. Use them for solar energy storage, custom battery boxes.

I need to provide pass-through DC connection in an outdoor shed with plywood siding. Drilling a hole with a hole saw is easy. The thick plastic shank and flanges will seal the hole and protect the connection inside and out. The slight issue (-.5 stars) is that the bolts are longer than necessary. Wire connections will be made with flat ring connectors. Torquing the nut down requires a deep-well socket which I happen to already own; however, this would not be necessary if the bolt were 1/4" shorter on both ends.

I used these terminal connectors for the battery output side of my solar recharged battery bank in my Jobsite toolbox.

Came quick and as shown!