A fastening tool for holding a plurality of fasteners and selectively setting a first one of the fasteners into a workpiece, the fastening tool comprising: a fastening tool portion having a handle, a clamp mechanism, and a nose structure, the handle being configured to be gripped by an operator when using the fastening tool, the clamp mechanism being coupled to the handle and including a clamp pin with a head portion and a body portion (324, 326), the clamp pin being movable between an engaged condition and a disengaged condition, the nose structure including a magazine flange; and a magazine assembly having an upper surface that is configured to abut a bottom surface of the magazine flange, the magazine assembly further including a magazine housing and a coupling bracket, the coupling bracket coupled to the magazine housing and including a slotted pin aperture having a first portion, which is sized larger than the head portion of the clamp pin, a second portion, which is sized to engage the head portion, and a slotted portion interconnecting the first and second portions (1232', 1234C) of the slotted pin aperture, the slotted portion of the slotted pin aperture being sized larger than the body portion of the clamp pin and smaller than the head portion of the clamp pin; the magazine assembly being positionable relative to the fastening tool portion in an uncoupled condition, wherein the magazine assembly is separated from the fastening tool portion; the magazine assembly being positionable relative to the fastening tool portion in a coupled condition, wherein the magazine assembly is fixed to the fastening tool portion such that the clamp pin is disposed in the second portion of the slotted pin aperture and the clamp mechanism is positioned in the engaged position and generating a clamping force that is applied through the head portion of the clamp pin and against the coupling bracket to thereby secure the magazine assembly to the handle; the magazine assembly also being positionable relative to the fastening tool portion in a semi-coupled condition, wherein the clamp mechanism is positioned in the disengaged position and the clamp pin is disposed in the slotted portion of the slotted pin aperture to thereby permit the magazine assembly to be slid relative to the fastening tool portion, the slotted portion being sized to limit sliding movement of the magazine assembly in a predetermined direction wherein the slotted portion defines a protrusion proximate the first portion which prevents the clamp pin from being pushed from the second portion to the first portion in a generally straight line. a fastening tool portion having a handle, a clamp mechanism, and a nose structure, the handle being configured to be gripped by an operator when using the fastening tool, the clamp mechanism being coupled to the handle and including a clamp pin with a head portion and a body portion (324, 326), the clamp pin being movable between an engaged condition and a disengaged condition, the nose structure including a magazine flange; and a magazine assembly having an upper surface that is configured to abut a bottom surface of the magazine flange, the magazine assembly further including a magazine housing and a coupling bracket, the coupling bracket coupled to the magazine housing and including a slotted pin aperture having a first portion, which is sized larger than the head portion of the clamp pin, a second portion, which is sized to engage the head portion, and a slotted portion interconnecting the first and second portions (1232', 1234C) of the slotted pin aperture, the slotted portion of the slotted pin aperture being sized larger than the body portion of the clamp pin and smaller than the head portion of the clamp pin; the magazine assembly being positionable relative to the fastening tool portion in an uncoupled condition, wherein the magazine assembly is separated from the fastening tool portion; the magazine assembly being positionable relative to the fastening tool portion in a coupled condition, wherein the magazine assembly is fixed to the fastening tool portion such that the clamp pin is disposed in the second portion of the slotted pin aperture and the clamp mechanism is positioned in the engaged position and generating a clamping force that is applied through the head portion of the clamp pin and against the coupling bracket to thereby secure the magazine assembly to the handle; the magazine assembly also being positionable relative to the fastening tool portion in a semi-coupled condition, wherein the clamp mechanism is positioned in the disengaged position and the clamp pin is disposed in the slotted portion of the slotted pin aperture to thereby permit the magazine assembly to be slid relative to the fastening tool portion, the slotted portion being sized to limit sliding movement of the magazine assembly in a predetermined direction wherein the slotted portion defines a protrusion proximate the first portion which prevents the clamp pin from being pushed from the second portion to the first portion in a generally straight line.