# 53.28 - top level internal cross bracing connector

---

# Overview  
See [3D overview of 53.28](https://a360.co/3VOVAxA)

## Assembled view  
Assembled 53.28

## Exploded view  
Exploded-view of 53.28

# Parts  
See order of use for [53.28 - top level internal cross bracing connector](https://cloud.instock.com/assets/articles/53.28/manual/)

# Assembly steps  
## Prerequisites  
1. fL2 or higher is installed  
2. central connector is installed  
3. sandwich panels are installed

Initial position state of 53.28

## Step 1  
  
Insert 3 pcs. of [1.5 plywood washer](https://cloud.instock.com/assets/articles/1.5/) into sandwich panel holes.

## Step 2  
  
Put [99.91001 washer](https://cloud.instock.com/assets/articles/99.91001/) in hole of the sandwich panel and screw in with [99.91035 screw](https://cloud.instock.com/assets/articles/99.91035/).

## Step 3  
  
Position 2 pcs. of [10.15 floor plate with countersunk holes](https://cloud.instock.com/assets/articles/10.15/) as depicted in the picture above.

## Step 4  
  
Fasten floor plates with 8 pcs. of [99.73 countersunk screw](https://cloud.instock.com/assets/articles/99.73/) in designated holes for countersunk screws.

## Step 5  
  
Position [15.56 cross bracing bracket](https://cloud.instock.com/assets/articles/15.56/) as depicted on the image above and fix with 3 pcs. of [99.21004 screw](https://cloud.instock.com/assets/articles/99.21004/) from underneath.

## Step 6  
  
Tighten with 3 pcs. of [99.91008 hex nut](https://cloud.instock.com/assets/articles/99.91008/).