HSW Has no nut by default like multiboard and lacks it as it would allow heavy loads.

Also, anything used can only be inserted from the front, so we cannot insert a part to hold the HSW grid from behind - by the behind part.

So, a screwable grip has to be done in multiple parts.

If a holder uses the standard HSW insert with the hole, then 2 third (at 180°) or 3 (at 120°) can be inserted behind from the front and bolted together with the provided bolt.