There are actually several components of the "install kit" for the SMH9187ST. To download the standard installation instructions, please click here: http://ars.samsung.com/customer/usa...
Please note that these instructions are the same for all Samsung over the range microwaves, including your SMH9187, though it is important to confirm the blower is angled appropriately for your desired venting.
If your microwave is brand new and the hardware was missing from it, please call 800-SAMSUNG to speak with an agent who will be happy to assist you. You can also visit SamsungParts.com for information and availability of replacement parts.
The wall and cabinet mounting templates are currently available only as packaged with the new microwave.