I had acquired a SHB trap(s) that are essentially a trays filled with oil that resides in the bottom board area, the trays may be withdrawn via the rear of the hive for servicing/cleaning. In order to establish a level hive 1/4" -20 x 2" hex bolts and T-Nuts were implemented see urls for details; that information was not provided by the vendor. The levelers (bolts/T-Nuts) also allow for some control of ants, see urls for details.
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