ABH 4000 Series - Overhead Holder & Stop, Medium Duty Concealed Mount

Features: Concealed Mount Medium Duty Stop, hold-open and friction functions avialable Single or double acting doors Non-handed For Interior or exterior use on moderate traffic and medium weight doors Standard installation from 85° to 110° (5° increments) Shock absorbing spring provides 3° to 5° cushion before dead-stop 1 3/8” minimum door thickness  UL Listed as Miscellaneous Fire Door Accessories for use on wood fire doors rated up to 90 minutes and metal fire doors rated up to3 hours (stop function only) Average weight per unit = 2 lbs. Options:  "N" All Stainless Steel (non-ferrous) components for wet environments to prevent corrosion  "HC" Hold Closed  "LL" Lead-Lined  "LS" Less Spring  "NON-FERROUS SCREW" - Non-ferrous fasteners provided in lieu of standard fasteners  "SEC" Fasteners  "T" Threaded Pivot Screw & Nylon Washer in Lieu of Jamb Bracket  "THICK" Special Door Thickness  Special - Contact ABH if the dimension, hardware or specifications differ from