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heavy duty outdoor door hinges

3pcs Heavy Duty Pool Gate Hinges | Hydraulic | Hold Open | 7ft | 260 lbs | 1” to 4” Thick | SS316 | K51P-D3-316

$627.50 - $627.50
$627.50
$627.50 - $627.50
$627.50

In chlorinated and coastal environments, predictable motion depends on materials that won’t degrade, and these pool gate hinges deliver that through SS316 construction.

Waterson heavy duty pool gate hinges provide soft-closing, numberic tension, and a selectable hold-open function to self-manage the hinge’s closing preferences

  • DESCRIPTION
  • DETAILS
  • SPECIFICATIONS
  • VIDEO

  • TALK TO SALES FIRST - NON REFUNDABLE

    Applications

    • Gate Entry
    • Pool Gate
    • Fully Exterior
    • Courtyard Style
    • Breezy environments
    • Corrosion Free and Marine Grade
    • Get more information with 316 marine grade hinges here. 

    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
    • An aesthetically pleasing and sleek all-in-one component
    • One million cycle testing ensures low maintenance longevity

  • Installation Kits  

    • 304 stainless steel Hex Drive Flat Head M6 x P1 x 0.630"L screws included -- eight (8) of each type per hinge.
    • 5mm & 4mm& 3mm& 2.5mm hex Allen wrenches
    • Sets include 1” extenders.
      * Each set includes 1” extenders.
      * 2-hinge pack: 12 extenders
      * 3-hinge pack: 18 extenders
      * For 0.5” extenders, contact us. These are special order items and not available online.

    Compliance Standards

    • Hinge Leaf Size: 5” x 6”
    • 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°

  • Specifications

    Product SKU K51P-316-D3
    Hinge Type Full Surface
    Hinge Material Stainless Steel 316
    Door Weight Up to 260lbs (75kg)
    Approx Door Size 1150mm W x 2200mm H (4ft x 7ft)
    Posts Thickness 1” - 4"
    Self-closing o
    Fluid Motion o
    Hold-open o
    Fixing Method Screw-On, only spot weld AFTER
    speed adjustment
    Color/Finish Satin Brushed or Black
    Combination/Quantity DS.HA.SB, 3 Pack
       
       



  • Product Video

Color: Flat Black-316-US19

FAQ

Do I need to prepare anything before installing Waterson hinges?

Waterson hinges are built for hassle-free installation, but we still suggest reading through our installation guide beforehand. You can find it on our Installation page.

How can I adjust the tension?

Our hinges feature a clearly marked tension panel for quick and simple adjustments. For full guidance, please refer to the Adjustment page.

What’s included in the warranty?

The warranty covers any material or manufacturing defects. It doesn’t apply to issues caused by shipping, impact, improper storage, or misuse. For full terms, visit our Warranty page.

How do I get a quote for bulk orders?

Just leave your request on our Request Quotation page, and our team will reach out within 12 hours. Need help right away? Give us a call.

Where are products shipped from?

Most of our orders ship from warehouses in Michigan and California.
For urgent or high-volume orders, we may also ship directly from our Taiwan headquarters. FedEx or UPS handles most deliveries (1–5 business days), while large-volume orders go by ocean freight (30–60 days).

What’s the delivery time?

Once your payment is confirmed, shipping usually takes 3–5 business days, depending on your region.

How is the shipping fee calculated?

Shipping costs depend on domestic courier rates and the weight of your package. Since we ship within the U.S., charges are typically standard.

How do I track my shipment?

We’ll send a confirmation email with a tracking number after your order ships. You can use this number to follow the delivery progress.