3pcs Marine Spring Door Hinges | Self Closing Hold Open | 4x4 | 7ft | 260 lbs | 1 3/4" Thick | SS316 | K51M-450-C3-316

Coastal pool barrier gates must stay self closing to pass inspection, but crews still need them to stay open for deliveries without propping.

Waterson 316 marine grade stainless steel self closing hold open gate hinges use a hydraulic damper with on-hinge tension and speed adjustment, holding the gate open at a set angle then returning it firmly to the latch, with nothing mounted outside the gate. 10-year warranty.

Warning : Special finishes (US4) is non-refundable

• DESCRIPTION
• DETAILS
• SPECIFICATIONS
• VIDEO

• Applications

  • 316 stainless steel 
  • Interior & Exterior 
  • Marine Grade
  • Pool Door/Gate
    
  • Metal Door/Gate
    
  • Wooden Door/Gate
  • Heavy Duty
  • Courtyard Style

  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 A156.17 Grade 1: one million cycle testing
  • 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

• Specifications

  Product SKU	K51M-450-C3-316
  Hinge Type	Full Mortise, 4 1/2 Inch x 4 1/2 Inch
  Hinge Material	Stainless Steel 316
  Door Weight	From 40lbs 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	x
  Hold-open	o
  Fixing Method	Screw-On, only spot weld AFTER speed adjustment
  Color/Finish	Satin Brushed,Black,Gold,ORB
  Combination/Quantity	SB,SA,SA1 3 Pack

  
  
  

• Product Video