A fastener installing vehicle includes an articulating frame having at least one mounting rail. A plurality of fastener installing assemblies are installed along the mounting rail with each including a mounting rail grip, a rotary impact driver, a fastener magazine, and a fastener-orienting tip. A power transmission system is capable of rotating wheels or tracks counter to each other to provide zero turning radius maneuverability. The fastener installing assembly has a feed tube communicating between the fastener magazine and the fastener-orienting tip, while the rotary impact driver is extendable along an axis transverse to the mounting rail. The rotary impact driver is electrically powered with means for monitoring electric current applied to it and process controller programmed to stop it when a predetermined applied current level has been met. The frame preferably includes lighting for illuminating a work area where fasteners are installed.

A setting device (100) for mounting roof membranes (470) and insulation layers (450) on a substructure (460) uses an arrangement having a fastener (210) and a ferromagnetic load distribution washer (200) for fastening. The setting device includes a movable frame (130) having a first feed device (110) for load distribution washers and a second feed device (120) for fasteners. The setting process starts with manual actuation of a vertically arranged pressure rod (145) that can be telescoped against a spring. A drive unit (150) attached thereto with a motor-driven drive mandrel (155) drives a fastener from a mounting guide (320) through a load distribution washer held in a mounting guide in the base assembly (310) of the setting device. A magnet system, designed so that the load distribution washer to be set is fixable in a suspended manner in the mounting bracket (300) without an additional mechanical retainer, is used.