Poulan Chain Adjustment Screw part# 016110 supersedes to part# 530-016110. This chain adjustment screw was used on the following Poulan chainsaw models; 2200, 2750, 3000, 3000CB, 2700, 3050, 3100, 3300, 3350, 3450, 3500, 3600, 3750, 2500, 2800, PP255, PP295, 2600, 285, 305, 335, PP380, PP285, PP305, PP310, PP315, PP336C, PP365, and PP365C.