ASRock > B450M Steel Legend

m 2 slot screw   Dan m2 slot types

The 80mm position has an adapter that screws into the motherboard and the screw that holds the SSD screws into that adapter at the 80mm position

The screw used to retain an drive is usually a flat head x Very inexpensive  I just purchased a Samsung SSD, and I had no trouble inserting it, but when I tried to screw it down with the screws that were included

vikings unleashed megaways slot METRIC CLEARANCE HOLE CHART Metric clearance hole chart for metric bolts and screws according to ASME 8 M2 Clearance Hole :  Shop for the SSD Mounting Screws Kit for ASUS Motherboards from Micro Connectors with the best service in canada from our Case Screws category