Stainless Gate Closer Hinges
Waterson state-of-the-art gate closer hinges are designed to provide flawless closing support for all exterior and interior gates. For exterior applications, spring loaded gate closers can adjust closing speed based on gate size and mass. At the same time, each hinge’s top-located protection cap ensures durability and longevity by protecting the hinge mechanism from any outside elements.
Applied to indoor applications, each hinge’s fluid motion design creates a quiet and pleasing gate closing experience. Made with stainless steel, Waterson self closing heavy duty gate hinges are built to firmly withstand all weather conditions. They are ideal for commercial gates, residential outdoor use, and interior swinging half doors, to name a few.

- Speed adjustable gate door closer
- Very durable
- Super reliable
- Field tests for more than 4 years
- Heavy duty construction
- Salt spray test
- Optimal weather resistance
- Meet ADA code
- Easy to open
Features

- Minimize rust and corrosion
- Stainless Steel 304 (SS316 per order)

- Hinge warranty marking
- Hinge traceability

- Pass 3 years outdoor field test
- The cap for extending product life

- Fit 2″, 3″, 4″ gate post sizes
- Multiple sizes of leave support
Specification
Hinge Type | Gate Size | Product SKU Full mortise |
FEATURES Door Range ≤ 120° |
Closing Type
Mechanical Only – M |
Hinge Qty
Hinge Type |
Finish | ||
---|---|---|---|---|---|---|---|---|
Self-closing | Fluid Motion | 90°Hold-open | ||||||
![]() 2″-4″ post |
≤ 150 lbs < 6’-0 x 4′-0 |
K51P-A2 | ● | M | 2 hinges/gate (SA.SA1) | Stocking US32D-630-Statin Brushed Matching-USL1-631-Matte BlackSpecial Order Matching-US20-690-Dark Bronze Matching-US15-619-Satin Brass ![]() |
||
K51P-B2 | ● | ● | H | 2 hinges/gate (HS.SA) | ||||
≤ 260 lbs < 7’-0 x 4′-0 |
K51P-A3 | ● | M | 3 hinges/gate (SA.SA.SA1) | ||||
K51P-B3 | ● | ● | H | 3 hinges/gate (DS.HA.SA) | ||||
K51P-C3 | ● | ● | M | 3 hinges/gate (SB.SA.SA1) | ||||
K51P-D3 | ● | ● | ● | H | 3 hinges/gate (SB.HS.SA) |
Hinge Type | Gate Size | Product SKU Full mortise |
FEATURES Door Range ≤ 120° |
Closing Type
Mechanical Only – M |
Hinge Qty
Hinge Type |
Finish | ||
---|---|---|---|---|---|---|---|---|
Self-closing | Fluid Motion | 90°Hold-open | ||||||
![]() |
≤ 150 lbs < 6’-0 x 4′-0 |
K51MP-A2 | ● | M | 2 hinges/gate (SA.SA1) | Stocking US32D-630-Statin Brushed Matching-USL1-631-Matte BlackSpecial Order Matching-US20-690-Dark Bronze Matching-US15-619-Satin Brass |
||
K51MP-B2 | ● | ● | H | 2 hinges/gate (HS.SA) | ||||
≤ 260 lbs < 7’-0 x 4′-0 |
K51MP-A3 | ● | M | 3 hinges/gate (SA.SA.SA1) | ||||
K51MP-B3 | ● | ● | H | 3 hinges/gate (DS.HA.SA) | ||||
K51MP-C3 | ● | ● | M | 3 hinges/gate (SB.SA.SA1) | ||||
K51MP-D3 | ● | ● | ● | H | 3 hinges/gate (SB.HS.SA) |