The MK80SS is a stainless steel concealed hinge for wood or hollow metal doors that are at least 1-3/8" thick. It is UL-listed and non-handed. Product Overview Features Stainless steel base material For wood or hollow metal doors that are a minimum 1-3/8" thick No covers UL Listed 180° opening angle 3-dimensional adjustability Benefits 3-hour fire rating on hollow metal or steel-covered composite fire doors, or 90 minutes on wood core fire doors Virtually disappears from view when the door is closed Provides aesthetic continuity when the door is open Refined and minimal Greater hinge capacity than the MK4001A Easy installation and door alteration Inches Millimeters Gauge No. of Holes Fastener 4 3/8" x 1 1/8" 111.5 x 29 4 3/8 4 Metal: M5 x 20 screws, Wood: 35mm PHWS Specifications Handing: Non-handed Certifications UL Listed Number of Hinges Door Width 32" 36" 38" 42" 48" 2 185 lbs 176 lbs 164 lbs 143 lbs 132 lbs 3 211 lbs 198 lbs 184 lbs 160 lbs 149 lbs 4 233 lbs 220 lbs 197 lbs 171 lbs 158 lbs
