A shielded pen needle assembly is provided in which the hub extends distally beyond an outer sleeve of the assembly. The pen needle assembly comprises:a hub adapted to receive a medication pen body having a medication compartment therein；a needle cannula affixed to the hub having a distal end extending from the distal end of the hub and a proximal end adapted to access the medication compartment in the pen body；a first passive shield arranged on the hub and encircling the needle cannula；a biasing member biasing the first passive shield to a distal position covering the needle cannula after injection；an outer sleeve attached to the hub having a distal end encircling the first passive shield and the hub；wherein the distal end of the hub is located distally of the distal end of the outer sleeve, and the distance between the distal tip of the needle and the distal end of the hub is the effective penetration depth of the needle.
