4pcs Self Closing Interior Door Hinges | Mechanical | Fire Rated | 4x4 | 8ft | 330 lbs | 1 ⅜ or 1 ¾” Thick | SS304 | K51M-400-A4

Looking for self closing interior door hinges that deliver controlled closing force and speed without overhead closers?

By using a mechanical hinge setup that fits 4x4 full-mortise doors up to 330 lbs, Waterson hinge set lets you dial in tension at the hinge ends and maintain cycle performance for interior hotel, corridor, and 8ft door applications. 10 years warranty

Warning : Special finish (US4) is non-refundable

• DESCRIPTION
• DETAILS
• SPECIFICATIONS
• VIDEO

• Applications

  • Hotel Rooms 
  • 3Hr Fire-rated
  • Interior & Exterior  
  • Arch Top 
  • Heavy Duty
  • Courtyard Style
  • 8ft Door

  Product Description and Features

  • 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 A156.17 Grade 1 : one million cycle testing  
  • ANSI A156.7 Template Hinge : 4” x 4”
  • 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

• Specifications

  Product SKU	K51M-400-A4
  Hinge Type	Full Mortise, 4 Inch x 4 Inch
  Hinge Material	Stainless Steel
  Door Weight	From 40lbs to 330lbs
  Approx Door Size	1150mm W x 2200mm H (4ft x 8ft)
  Door Thickness	1 ¾” (40-50 mm)
  Self-closing	o
  Fluid Motion	x
  Hold-open	x
  Fixing Method	Screw-On, only spot weld AFTER speed adjustment
  Color/Finish	Satin Brushed,Black,Gold,ORB
  Combination/Quantity	DS.SA.SA.SA1,4 Pack

  
  
  

• Product Video