Hinge

Hinge Preparations – Why are they so strong?

Timely Hinge Preparation

  • Extruded Screw holes
  • Rolled threads instead of traditional tapping
  • 0.224″ Depth of thread capture
  • No welds to fail – 100 % performance guarantee over the life of the building
  • Embossed instead of cutting out metal – frame material is sandwiched between the hinge and reinforcement bracket for maximum strength

Hollow Metal Hinge Preparation

  • Screw holes drilled in 10 ga. (0.134″) steel reinforcement plate
  • Threads tapped with traditional tapping machinery
  • 0.134″ Depth of thread capture (same as thickness of reinforcement)
  • 6 spot welds are the only connection between the reinforcement plate and frame
  • Failure of welds cause total failure of opening

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