An electronic article surveillance tag (100, 2700), comprising: - a tag body member (120, 900, 2600); - a connecting member (102, 908) having a pin portion (103, 906) releasably engageable with the tag body member (120, 900, 2600), wherein the pin portion (103, 906) extends along a first axis; - a locking member (101, 910) attached to the tag body member (120, 900, 2600) and configured to receive the pin portion (103, 906) to lock the connecting member (102, 908) to the tag body member (120, 900, 2600), wherein the locking member (101, 910) includes a clutch mechanism movable parallel to the first axis between a first position in fixed engagement with the pin portion (103, 906) and corresponding to a locked state and a second position corresponding to an unlocked state that allows detachment of the pin portion (103, 906) from the locking member (101, 910), the clutch mechanism including a plunger member (134, 910) formed from a non-ferromagnetic material and having a first contact surface (142, 146); - an unlocking member (110, 902) slidably engaged with the tag body member (120, 900, 2600) and moveable along a second axis perpendicular to the first axis between a locked position and an unlocked position, wherein the unlocking member (110, 902) includes a second contact surface that contacts the first contact surface (142, 146) during movement between the locked position and the unlocked position to move the clutch mechanism between the first position corresponding to the locked state and the second position corresponding to the unlocked state; and - an actuator connected to the unlocking member (110, 110, 902) and configured to move the unlocking member (110, 110, 902) from the locked position to the unlocked position, wherein the first contact surface (142, 146) of the plunger member (134, 910) comprises an angled surface relative to the first axis. - a tag body member (120, 900, 2600); - a connecting member (102, 908) having a pin portion (103, 906) releasably engageable with the tag body member (120, 900, 2600), wherein the pin portion (103, 906) extends along a first axis; - a locking member (101, 910) attached to the tag body member (120, 900, 2600) and configured to receive the pin portion (103, 906) to lock the connecting member (102, 908) to the tag body member (120, 900, 2600), wherein the locking member (101, 910) includes a clutch mechanism movable parallel to the first axis between a first position in fixed engagement with the pin portion (103, 906) and corresponding to a locked state and a second position corresponding to an unlocked state that allows detachment of the pin portion (103, 906) from the locking member (101, 910), the clutch mechanism including a plunger member (134, 910) formed from a non-ferromagnetic material and having a first contact surface (142, 146); - an unlocking member (110, 902) slidably engaged with the tag body member (120, 900, 2600) and moveable along a second axis perpendicular to the first axis between a locked position and an unlocked position, wherein the unlocking member (110, 902) includes a second contact surface that contacts the first contact surface (142, 146) during movement between the locked position and the unlocked position to move the clutch mechanism between the first position corresponding to the locked state and the second position corresponding to the unlocked state; and - an actuator connected to the unlocking member (110, 110, 902) and configured to move the unlocking member (110, 110, 902) from the locked position to the unlocked position,