US Patent 10154605 Fastener alignment for split chassis assembly

A modular IHS (Information Handling System) chassis system includes a first module and a second module. An alignment pin is fixed to the sidewall of the first module. An alignment slot is cut from the corresponding sidewall of the second module. The second module also includes a retaining mechanism that receives the alignment pin during assembly of the first module and the second module. The retaining mechanism locks the alignment pin into a seated position in the first alignment slot, thus preventing separation of the first module and second module during the assembly process. The retaining mechanism may be a retaining plate that includes upper and lower protrusions that extend into the alignment slot and lock the alignment pin in place. The retaining mechanism may also be a latch that opens by pushing the alignment pin into the alignment slot and closes to lock the alignment pin in place.