Hager® Full Mortise Butt Hinge, Five Knuckle Plain Bearing, Square Corners, Finish: USP, 1D, 2D, US4, ABA/US5, US10A, US10R, US15, AN/US15A, US26, US26D, Material: Steel with Steel Pin, Standards: ANSI A5134, Gauge Of Metal: 0.085", Screw Size (Wood): 3/4 x 9 FH, Hole Count: 8, Hing Size: 4" x 4", Applications: For use on Medium Weight Doors or Doors Requiring Medium Frequency Service