Abstract: An autonomous system attaches corrugated metal decking to roof structural members such as purlins, trusses or joists using a motorized wheeled carriage that traverses deck corrugations and drives threaded fasteners with closed-loop control. A fastener management module holds structural and sidelap screws in separate hoppers, orients them via screw sorters, and distributes them by a linearly translatable gantry to multiple drill units. Each unit includes a PWM-controlled drill, a linear actuator for plunge, and a spring-biased jaw release cooperating with a magnetized nut driver. A sensor assembly within a corrugation detects structural members, guides lateral alignment, and senses pre-existing fasteners; metal deck edge range sensors and a fail-safe brake preventing the system from running off the roof deck. Controllers networked over CAN coordinate motion, torque, patterns, speed, plunge of the fastening system, verify seating by motor/force feedback, and generate audit records of as-installed locations.