The HJ-7NP is a metal anti-static connector set that allows you to connect two pipes perpendicularly, one above another.
To make an HJ-7NP, you need to place two H-7NP together with one M6-25BWZ bolt and one M6-NWZ nut. The purpose of using this connector is mostly to reinforce your structures. Unlike the HJ-4NP, this assembly can create a wire mesh without having to break the pipes and in a way where they don't lose structural capacity but rather gain some. Please note that nuts and bolts are included, but packaged separately. Assembly is required.
A Flexpipe Product
For technical details and images, please search for the product using the 80/20 interactive catalogue found here: https://catalogs.8020.net/80-20-Catalog-26/C/.