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Heavy Duty Gate Hinges

Waterson heavy duty gate hinges are your go-to solution for strong, efficient fence gate control. Made from high-grade stainless steel, they handle metal, wood, and aluminum gates with long-lasting strength and low maintenance.

Choose from 304 or 316 stainless steel — both offering excellent corrosion resistance for pool gates, garden gates, and even seaside resorts.

Designed for durability. Made for the elements. Built to last.

  • Original price $304.39 - Original price $304.39
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    2pcs Self Closing Garden Gate Hinges | Mechanical | 6ft | 1.5” to 2” Thick | SS304 | K51MP-A2

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    If you need self closing garden gate hinges that can manage exterior wood or metal gates in full weather exposure, Waterson hinges offer an adjusta...

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    2pcs Stainless Steel Self Closing Gate Hinges | Mechanical | 6ft | 260 lbs | 1” to 4” Thick | SS304 | K51P-A2

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    Dragging gates, uneven closing, or inconsistent latch speed usually point back to hinge control—not the gate. Waterson stainless steel self closing...

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    3pcs Self Closing Weld On Gate Hinges | Hydraulic | Hold Open | 7ft | 260 lbs | 1.5” to 2” Thick | SS304 | K51MP-D3

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    Self closing weld on hinges for exterior gates often come down to closing consistency, weatherproof, and adjustable tension tuning after welding. W...

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    3pcs Wooden Gate Closer Heavy Duty | Mechanical | 7ft | 260 lbs | 1.5” to 2” Thick | SS304 | K51MP-A3

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    Waterson Wooden Gate Closer Heavy Duty system delivers mechanical self-closing performance for 7 ft wooden gates up to 260 lbs. These wooden gate c...

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    2pcs Gate Hinges Soft Closing | Hydraulic | 6ft | 150 lbs | 1” to 4” Thick | SS304 | K51P-B2

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    Soft close gate hinge combine self and soft closing performance that regulates speed from start to finish, allowing you to fine-tune closing behavi...

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    2pcs Heavy Duty Hydraulic Gate Closer | 6ft | 150 lbs | 1.5” to 2” Thick | SS304 | K51MP-B2

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    Waterson heavy duty hydraulic gate closers support controlled soft-close operation through a combined mechanical-hydraulic system, managing 6 ft ga...

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  • Original price $529.50 - Original price $529.50
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    3pcs Self Closing Gate Hinges Heavy Duty | Mechanical | 7ft | 260 lbs | 1” to 4” Thick | SS304 | K51P-A3

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    Waterson stainless steel self closing gate hinges give you a mechanical, spring loaded gate hinge setup with precise tension adjustment and full-su...

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    3pcs Adjustable Swing Gate Hinges | Hydraulic | 7ft | 260 lbs | 1.5” to 2” Thick | SS304 | K51MP-B3

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    Waterson adjustable swing gate hinge system combines mechanical tensioning with hydraulic damping to manage heavier exterior gates without external...

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    3pcs Black Gate Hinges | Mechanical | Hold Open | 7ft | 260 lbs | 1” to 4” Thick | SS304 | K51P-C3

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    Waterson black gate hinges in a 4" template include a numerical tension panel that lets installers fine-tune closing force during field setup.  The...

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  • Original price $570.50 - Original price $570.50
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    3pcs Soft Close Gate Hinges | Hydraulic | Hold Open | 7ft | 260 lbs | 1” to 4” Thick | SS304 | K51P-D3

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    Waterson soft close gate hinges give you independent control of speed, spring power, and closing tension through a numeric adjustment panel and hyd...

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    3pcs Heavy Duty Outdoor Door Hinges | Hydraulic | 7ft | 260 lbs | 1” to 4” Thick | SS304 | K51P-B3

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    Designed for long-term exposure, Waterson heavy duty outdoor door hinges use a hydraulic soft-close system that keeps your gate closing stable in r...

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    2pcs Heavy Duty Stainless Steel Marine Hinges | Hydraulic | 6ft | 150 lbs | 1” to 4” Thick | SS316 | K51P-B2-316

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    Heavy duty stainless steel marine hinges manufactured from 316 stainless steel provide stable, corrosion-resistant performance in coastal, poolside...

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    3pcs Heavy Duty Wrought Iron Gate Hinges | Mechanical | Hold Open | 7ft | 260 lbs | 1.5” to 2” Thick | SS304 | K51MP-C3

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    When you specify wrought iron gate hinges for exterior gates, the priorities are closing consistency, tension precision, and durability under daily...

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    2pcs Stainless Steel Marine Hinges | Mechanical | 6ft | 150 lbs | 1” to 4” Thick | SS316 | K51P-A2-316

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    Stainless steel 316 hinges are often used where gate hardware must close reliably and stay stable in coastal or chemical-exposed environments. Wate...

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    Original price $391.00 - Original price $391.00
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  • Original price $627.50 - Original price $627.50
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    3pcs Heavy Duty Pool Gate Hinges | Hydraulic | Hold Open | 7ft | 260 lbs | 1” to 4” Thick | SS316 | K51P-D3-316

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

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  • Original price $586.50 - Original price $586.50
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    3pcs Self Closing Gate Hinges for Pool | Mechanical | Hold Open | 7ft | 260 lbs | 1” to 4” Thick | SS316 | K51P-C3-316

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    Waterson self closing pool hinges built in SS316 deliver a reliable mechanical closing motion that resists performance drift near chlorinated water...

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    Original price $586.50 - Original price $586.50
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    3pcs Swimming Pool Gate Hinges | Hydraulic | 7ft | 260 lbs | 1” to 4” Thick | SS316 | K51P-B3-316

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    Swimming pool gate hinges built with SS316 components use a hydraulic damper and adjustable tension system to keep closing behavior consistent in c...

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    Original price $627.50 - Original price $627.50
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    3pcs Self Closing Pool Gate Hinges | Mechanical | 7ft | 260 lbs | 1” to 4” Thick | SS316 | K51P-A3-316

    In stock

    Self closing pool gate hinges built in SS316 give you a corrosion-resistant, mechanical spring system with numerical tension control for 4-ft × 7-f...

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    Original price $586.50 - Original price $586.50
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What is a Heavy Duty Gate Hinge

A heavy-duty gate hinge is a specially engineered hinge designed to support and operate large, heavy, or high-use gates. These hinges are built for strength, durability, and long-term performance in demanding environments such as commercial facilities, industrial zones, and outdoor applications.

Why Choose an Adjustable Heavy-Duty Gate Hinge

An adjustable heavy-duty gate hinge offers the perfect blend of strength, durability, and precision control—making it ideal for both commercial and residential gate systems. Here's why it's a smart choice:

  • ANSI/BHMA A156.17: Tested the one million cycles. Our self-closing gate hinges can handle frequent use in residential & commercial spaces.
  • Spring Loaded Self Closing: Ensures automatic closing for enhanced security and convenience.
    Adjustable Speed Control: Allows users to customize the closing force and prevent slamming, even in high-wind conditions.
  • Weatherproof & Corrosion-Resistant: 316 Stainless Steel design withstands harsh weather, rust, and corrosive environments.
  • Heavyweight Bearing & Heavy-Duty: Can handle from 260–440 lbs door and even more with special door cases. Ensuring long-term reliability.
  • Long-Lasting Performance: Investment-cast stainless steel ensures maximum durability and minimal maintenance, withstanding years of heavy-duty use.

Types of Heavy Duty Gate Hinges

Waterson self-closing gate hinges are available in multiple installation styles to suit different gate frames and site conditions. Each type comes in mechanical or hydraulic hybrid options, with multiple gate hinge types are as follows:

K51P – Full Surface Clamping Style (with back plate)

K51PS – Full Surface Screw-on Style (without back plate)

K51MP – Butt Hinges Style (fits between metal gate square posts)

K51W / K51WP – Side Mount Style (for uneven surfaces; WP includes cover cap)

General Specs:

  • Gate Thickness: 1-3/4"
  • Max Gate Size: Up to 7' H x 4' W
  • Weight Range: ≤150–260 lbs
  • Hinge Quantity: 2 or 3 hinges per gate (depending on weight)
  • Functions: Self-closing, Fluid Motion, 90° Hold-Open (optional)
  • Finish Options: US32D Satin Brushed, US19 Flat Black, and custom finishes by request

For full specs and model breakdowns, see our catalog for more details. 

Door Types Suitable for Heavy Duty Gate Hinges