Abstract: A system for engaging fasteners includes a socket assembly and a fastener jig. The socket assembly having a socket body and a spring blade assembly, which includes a blade retaining ring and a plurality of resiliently deformable retaining blades that are movable with respect to a blade guide, between releasing and securing positions that selectively enclose and expose the socket body opening. The fastener jig includes a jig frame and at least one pair of opposing fastener jaws, which are movable between a releasing position and a securing position. The fastener jig may include a pair of opposing mounting jaws movable between a releasing position and a securing position. The socket assembly and fastener jig are configured to be operated at the distal ends of elongated tool arms, such as lineman hot-sticks.