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K51M-450-B3 | Hydraulic Hybrid Self Closing Hinge | 4.5” x 4.5” | Fire-rated Stainless Steel | 3 Pack


  • Offices
  • Interior Use Only
  • Frameless Glass Door
  • French Style
  • Quiet area
  • Breezy environments

Product Description and Features

  • Apply for door open ≤ 120°
  • Fully adjustable closing force and speed according to environment needs
  • Numerical adjustment panel on hinge end to set up precise tension
  • Mechanical only mechanism supporting heavy duty and fully exterior
  • Aesthetically pleasing compared to door closers — without extrusive arms
  • UL certified cycle testing ensures many years of low maintenance.

Installation Kits  

  • Both machined #12-24 UNC ½”L and wooden tapping #12 x 1 ¼” screws included — eight (8) of each type per hinge. Pack contains five (5) spares as well.
  • Three steel adhesive shims for gap adjustment between door and frame as needed
  • Tension Crook: Keeps hinge open during installation
  • 5mm & 3mm hex allen wrenches

Compliance Standards

  • ANSI A156.7 Template Hinge : 4.5” x 4.5”
  • CSI Spec 08 7100 Door Hardware & 08 7808 Self-closing Hinges
  • ADA Force : opening force no more than 5 lbs
  • ADA Closing Speed: at least 5 sec to move from m 90° to 12°
  • ADA Vertical Clearance: Does not intrude into the doorway as do some overhead closers


Product SKU K51M-450-B3
Hinge Type Full Mortise, 4 1/2 Inch x 4 1/2 Inch
Hinge Material Stainless Steel
Door Weight Up to 260lbs
Approx Door Size 1150mm W x 2200mm H (4ft x 7ft)
Door Thickness 1 ¾” (40-50 mm)
Self-closing o
Fluid Motion o
Hold-open x
Fixing Method Screw-On, only spot weld AFTER speed adjustment
Color/Finish Satin Brushed,Black,Gold,ORB
Combination/Quantity DS.HA.SA1,3 Pack


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