4pcs Heavy Duty Marine Door Hinges | Soft Closing Hold Open | 4.5x4.5 | 8ft | 260 lbs | 1 3/4" Thick | SS316 | K51M-450-D4-316

Near the water you want a gate that closes gently, latches reliably, and can hold open on demand, and salt air is the thing that slowly erodes all three.

Waterson 316 marine grade stainless steel soft closing hold open hinges pair a hydraulic damper with on-hinge tension and speed adjustment with a built in hold open, giving a smooth, quiet close that keeps the latch true through the season, plus the option to hold the gate open, with no external closer on the gate. 10-year warranty.

• 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-D4-316
  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 8ft)
  Door Thickness	1 ¾” (40-50 mm)
  Self-closing	o
  Fluid Motion	o
  Hold-open	o
  Fixing Method	Screw-On, only spot weld AFTER speed adjustment
  Color/Finish	Satin Brushed,Black,Gold,ORB
  Combination/Quantity	DS.SA.HA.SB, 4 Pack

  
  
  

• Product Video