Partition "U" Bracket Chrome Plated For 7/8" X 1-1/2" X 1-3/8 . If your toilet partition or bathroom stall wall bracket is cast with the number 1900 on the back, then you have the “U” Wall Bracket for 7/8″ thick toilet partition panels. The wall bracket is usually mounted on the wall or the pilaster to mount the toilet partition stall panels. This bracket is 1-5/32″ wide x 1-3/8″ tall, with the through hole located at 1″ from the back. If features 4 holes with a 1/4″ diameter, with two of them on the base. The bracket is made of a die cast material that is then polished chrome plated. This bracket is sometimes called a Toilet Partition or Bathroom Stall “U” Bracket, or “U” Wall Bracket.