Commercial Stainless Steel Closer Hinge
Commercial self-closing hinges need to handle the daily rigors of frequent use. Waterson Stainless Steel Closer Hinges are designed to manage commercial closing demands while maintaining fluid and effective movement, particularly with obligatory fire rated doors. A typical 7’0 door utilizes three active Waterson Closer Hinges to create a perfect, self-closing system. Each hinge’s unique numerical panel allows the spring tensions to adjust precisely according to door weight and environmental conditions. Additionally, Waterson hinges meet all ADA codes concerning speed control, closing force, and door clearance.
- 3hr Fire Rated
- Commercial Grade
- 304/ 316 Stainless Steel
- Aesthetically pleasing
- Fully Speed & Force Adjustable
- ADA Compliant
- ANSI A156.17 Grade One – UL Listed
Specify Waterson
Specification and Configuration
US STANDARD
1. Specification
| Hinge Type | DIM (H x W) | BHMA# | Door thickness | Model# | Gauge | Options |
|---|---|---|---|---|---|---|
| Full Mortise | 4″ x 4″ | A40M | 1-3/8″ | K51M—400 |
0.130″ |
STANDARD FINISHES US32D-630-Satin Stainless Steel MATCHING FINISHES US19-631-Flat Black – Powder coating US10B-695-Dark Satin Bronze – Powder coating US4-731-Satin Brass – Physical vapor deposition Custom CORNERS Square 1/4R radius 5/8R radius |
| 4-1/2″ x 4-1/2″ | A45M | 1-3/4″ | K51M-450 |
0.134″ |
||
| 5″ x 5″ | A50M | 1-3/4″~2-1/2″ | K51M-500 |
0.146″ |
||
| 5″ x 5″ | A50B | 1-3/4″~2-1/2″ | K51M-500D |
0.190″ |
||
| 6″ x 6″ | A60M | 1-3/4″~2-1/2″ | K51M-600 |
0.160″ |
||
| Swing Clear | 4-1/2″ x 4-1/2″ | A45M5 | 1-3/4″ | K51L-SWRH-450 |
0.134″ |
|
| 5″ x 4-1/2″ | n/a | 1-3/4″ | K51L-SWRH-545 |
0.146″ |
2. Configuration
| Door Size | Product SKU Full mortise 4.5*4.5 |
FEATURES Door Range ≤ 120° |
Closing Type
Mechanical Only — M |
Hinge Qty
Hinge Type |
Finish | ||
|---|---|---|---|---|---|---|---|
| Self-closing | Fluid Motion | 90°Hold-open | |||||
| 1-3/4″ < 7’-0 x 4′-0 ≤ 260 lbs |
K51M-450-A3 | ● | M | 3 hinges/door (SA.SA.SA1) | Stocking
US32D-630-Satin Stainless Steel Special Order Matching-US10B-695-Dark Satin Bronze – Powder coating
|
||
| K51M-450-B3 | ● | ● |
H |
3 hinges/door (DS.HA.SA1) | |||
| K51M-450-C3 | ● | ● | M | 3 hinges/door (SB.SA.SA1) | |||
| K51M-450-D3 | ● | ● | ● | H | 3 hinges/door (DS.HA.SB) | ||
| 1-3/4″ < 8’-0 x 4′-0 ≤ 260 lbs |
K51M-450-C4 | ● | ● | M | 4 hinges/door (SA.SB.SA.SA1) | ||
| K51M-450-D4 | ● | ● | ● | H | 4 hinges/door (DS.SB.HA.SA1) | ||
| 1-3/4″ < 8’-0 x 4′-0 ≤ 330 lbs |
K51M-450-A4 | ● | M | 4 hinges/door (DS,SA,SA,SA1) | |||
| K51M-450-B4 | ● | ● | H | 4 hinges/door (DS.SA.HA.SA1) | |||
1. We provide additional door stop ( at 90°) features for all models. Email to request a quotation.
2. Learn more about Waterson hinge design (SA,SA1,SB,…)
3. Learn more about mechanical or hydraulic hybrid closing types, or watch video
4. Please contact us directly concerning doors over the above specifications.
| Door Size | Product SKU Full mortise 4*4 |
FEATURES Door Range ≤ 120° |
Closing Type
Mechanical Only — M |
Hinge Qty
Hinge Type |
Finish | ||
|---|---|---|---|---|---|---|---|
| Self-closing | Fluid Motion | 90° Hold-open | |||||
| 1-3/8″ < 7’-0 x 4′-0 ≤ 260 lbs |
K51M-400-A3 | ● | M | 3 hinges/door (SA.SA.SA1) | Stocking
US32D-630-Satin Stainless Steel Special Order Matching-US10B-695-Dark Satin Bronze – Powder coating
|
||
| K51M-400-B3 | ● | ● |
H |
3 hinges/door (DS.HA.SA1) | |||
| K51M-400-C3 | ● | ● | M | 3 hinges/door (SB.SA.SA1) | |||
| K51M-400-D3 | ● | ● | ● | H | 3 hinges/door (DS.HA.SB) | ||
| 1-3/8″ < 8’-0 x 4′-0 ≤ 260 lbs |
K51M-400-C4 | ● | ● | M | 4 hinges/door (SA.SB.SA.SA1) | ||
| K51M-400-D4 | ● | ● | ● | H | 4 hinges/door (DS.SB.HA.SA1) | ||
| 1-3/8″ < 8’-0 x 4′-0 ≤ 330 lbs |
K51M-400-A4 | ● | M | 4 hinges/door (DS,SA,SA,SA1) | |||
| K51M-400-B4 | ● | ● | H | 4 hinges/door (DS.SA.HA.SA1) | |||
1. We provide additional door stop ( at 90°) features for all models. Email to request a quotation.
2. Learn more about Waterson hinge design (SA,SA1,SB,…)
3. Learn more about mechanical or hydraulic hybrid closing types, or watch video
4. Please contact us directly concerning doors over the above specifications.
| Door Size | Product SKU Full mortise 5*5 |
FEATURES Door Range ≤ 120° |
Closing Type
Mechanical Only — M |
Hinge Qty
Hinge Type |
Finish | ||
|---|---|---|---|---|---|---|---|
| Self-closing | Fluid Motion | 90°Hold-open | |||||
| 1-3/4″ ~ 2-1/4″ < 7’-0 x 4′-0 ≤ 260 lbs |
K51M-500-A3 | ● | M | 3 hinges/door (SA.SA.SA1) | Stocking
US32D-630-Satin Stainless Steel Special Order Matching-US10B-695-Dark Satin Bronze – Powder coating
|
||
| K51M-500-B3 | ● | ● |
H |
3 hinges/door (DS.HA.SA1) | |||
| K51M-500-C3 | ● | ● | M | 3 hinges/door (SB.SA.SA1) | |||
| K51M-500-D3 | ● | ● | ● | H | 3 hinges/door (DS.HA.SB) | ||
| 1-3/4″ ~ 2-1/4″ < 8’-0 x 4′-0 ≤ 260 lbs |
K51M-500-C4 | ● | ● | M | 4 hinges/door (SA.SB.SA.SA1) | ||
| K51M-500-D4 | ● | ● | ● | H | 4 hinges/door (DS.SB.HA.SA1) | ||
| 1-3/4″ ~ 2-1/4″ < 8’-0 x 4′-0 ≤ 330 lbs |
K51M-500-A4 | ● | M | 4 hinges/door (DS,SA,SA,SA1) | |||
| K51M-500-B4 | ● | ● | H | 4 hinges/door (DS.SA.HA.SA1) | |||
1. We provide additional door stop ( at 90°) features for all models. Email to request a quotation.
2. Learn more about Waterson hinge design (SA,SA1,SB,…)
3. Learn more about mechanical or hydraulic hybrid closing types, or watch video
4. Please contact us directly concerning doors over the above specifications.
| Door Size | Product SKU Full mortise 5*5 |
FEATURES Door Range ≤ 120° |
Closing Type
Mechanical Only — M |
Hinge Qty
Hinge Type |
Finish | ||
|---|---|---|---|---|---|---|---|
| Self-closing | Fluid Motion | 90°Hold-open | |||||
| 1-3/4″ ~ 2-1/4″ < 7’-0 x 4′-0 ≤ 260 lbs |
K51M-500D-A3 | ● | M | 3 hinges/door (SA.SA.SA1) | Stocking
US32D-630-Satin Stainless Steel Special Order Matching-US10B-695-Dark Satin Bronze – Powder coating
|
||
| K51M-500D-B3 | ● | ● |
H |
3 hinges/door (DS.HA.SA1) | |||
| K51M-500D-C3 | ● | ● | M | 3 hinges/door (SB.SA.SA1) | |||
| K51M-500D-D3 | ● | ● | ● | H | 3 hinges/door (DS.HA.SB) | ||
| 1-3/4″ ~ 2-1/4″ < 8’-0 x 4′-0 ≤ 260 lbs |
K51M-500D-C4 | ● | ● | M | 4 hinges/door (SA.SB.SA.SA1) | ||
| K51M-500D-D4 | ● | ● | ● | H | 4 hinges/door (DS.SB.HA.SA1) | ||
| 1-3/4″ ~ 2-1/4″ < 8’-0 x 4′-0 ≤ 330 lbs |
K51M-500D-A4 | ● | M | 4 hinges/door (DS,SA,SA,SA1) | |||
| K51M-500D-B4 | ● | ● | H | 4 hinges/door (DS.SA.HA.SA1) | |||
1. We provide additional door stop ( at 90°) features for all models. Email to request a quotation.
2. Learn more about Waterson hinge design (SA,SA1,SB,…)
3. Learn more about mechanical or hydraulic hybrid closing types, or watch video
4. Please contact us directly concerning doors over the above specifications.
US STANDARD
1. Specification
| Hinge Type | DIM (H x W) | BHMA# | Door thickness | Model# | Gage | Options |
|---|---|---|---|---|---|---|
| Full Mortise | 4″ x 4″ | A40M | 1-3/8″ | K51M—400 |
0.130″ |
STANDARD FINISHES US32D-630-Satin BrushedMATCHING FINISHES USL1-631-Matte Black US10B-640-Oil Rubbed Bronze US4-619-Satin Brass CustomCORNERS Square 1/4R radius 1/5R radius |
| 4-1/2″ x 4-1/2″ | A45M | 1-3/4″ | K51M-450 |
0.134″ |
||
| 5″ x 5″ | A50M | 1-3/4″~2-1/2″ | K51M-500 |
0.146″ |
||
| 5″ x 5″ | A50B | 1-3/4″~2-1/2″ | K51M-500D |
0.190″ |
||
| 6″ x 6″ | A60M | 1-3/4″~2-1/2″ | K51M-600 |
0.160″ |
||
| Swing Clear | 4-1/2″ x 4-1/2″ | A45M5 | 1-3/4″ | K51L-SWRH-450 |
0.134″ |
|
| 5″ x 4-1/2″ | n/a | 1-3/4″ | K51L-SWRH-500 |
0.146″ |
2. Configuration
| Door Size | Product SKU Full mortise 4.5*4.5 |
FEATURES Door Range ≤ 120° |
Closing Type
Mechanical Only — M |
Hinge Qty
Hinge Type |
Finish | ||
|---|---|---|---|---|---|---|---|
| Self-closing | Fluid Motion | 90°Hold-open | |||||
| 1-3/4″ < 7’-0 x 4′-0 ≤ 260 lbs |
K51M-450-A3 | ● | M | 3 hinges/door (SA.SA.SA1) | Stocking
US32D-630-Satin Stainless Steel Special Order Matching-US10B-695-Dark Satin Bronze – Powder coating
|
||
| K51M-450-B3 | ● | ● |
H |
3 hinges/door (DS.HA.SA1) | |||
| K51M-450-C3 | ● | ● | M | 3 hinges/door (SB.SA.SA1) | |||
| K51M-450-D3 | ● | ● | ● | H | 3 hinges/door (DS.HA.SB) | ||
| 1-3/4″ < 8’-0 x 4′-0 ≤ 260 lbs |
K51M-450-C4 | ● | ● | M | 4 hinges/door (SA.SB.SA.SA1) | ||
| K51M-450-D4 | ● | ● | ● | H | 4 hinges/door (DS.SB.HA.SA1) | ||
| 1-3/4″ < 8’-0 x 4′-0 ≤ 330 lbs |
K51M-450-A4 | ● | M | 4 hinges/door (DS,SA,SA,SA1) | |||
| K51M-450-B4 | ● | ● | H | 4 hinges/door (DS.SA.HA.SA1) | |||
1. We provide additional door stop ( at 90°) features for all models. Email to request a quotation.
2. Learn more about Waterson hinge design (SA,SA1,SB,…)
3. Learn more about mechanical or hydraulic hybrid closing types, or watch video
4. Please contact us directly concerning doors over the above specifications.
| Door Size | Product SKU Full mortise 4*4 |
FEATURES Door Range ≤ 120° |
Closing Type
Mechanical Only — M |
Hinge Qty
Hinge Type |
Finish | ||
|---|---|---|---|---|---|---|---|
| Self-closing | Fluid Motion | 90° Hold-open | |||||
| 1-3/8″ < 7’-0 x 4′-0 ≤ 260 lbs |
K51M-400-A3 | ● | M | 3 hinges/door (SA.SA.SA1) | Stocking
US32D-630-Satin Stainless Steel Special Order Matching-US10B-695-Dark Satin Bronze – Powder coating
|
||
| K51M-400-B3 | ● | ● |
H |
3 hinges/door (DS.HA.SA1) | |||
| K51M-400-C3 | ● | ● | M | 3 hinges/door (SB.SA.SA1) | |||
| K51M-400-D3 | ● | ● | ● | H | 3 hinges/door (DS.HA.SB) | ||
| 1-3/8″ < 8’-0 x 4′-0 ≤ 260 lbs |
K51M-400-C4 | ● | ● | M | 4 hinges/door (SA.SB.SA.SA1) | ||
| K51M-400-D4 | ● | ● | ● | H | 4 hinges/door (DS.SB.HA.SA1) | ||
| 1-3/8″ < 8’-0 x 4′-0 ≤ 330 lbs |
K51M-400-A4 | ● | M | 4 hinges/door (DS,SA,SA,SA1) | |||
| K51M-400-B4 | ● | ● | H | 4 hinges/door (DS.SA.HA.SA1) | |||
1. We provide additional door stop ( at 90°) features for all models. Email to request a quotation.
2. Learn more about Waterson hinge design (SA,SA1,SB,…)
3. Learn more about mechanical or hydraulic hybrid closing types, or watch video
4. Please contact us directly concerning doors over the above specifications.
| Door Size | Product SKU Full mortise 5*5 |
FEATURES Door Range ≤ 120° |
Closing Type
Mechanical Only — M |
Hinge Qty
Hinge Type |
Finish | ||
|---|---|---|---|---|---|---|---|
| Self-closing | Fluid Motion | 90°Hold-open | |||||
| 1-3/4″ ~ 2-1/4″ < 7’-0 x 4′-0 ≤ 260 lbs |
K51M-500-A3 | ● | M | 3 hinges/door (SA.SA.SA1) | Stocking
US32D-630-Satin Stainless Steel Special Order Matching-US10B-695-Dark Satin Bronze – Powder coating
|
||
| K51M-500-B3 | ● | ● |
H |
3 hinges/door (DS.HA.SA1) | |||
| K51M-500-C3 | ● | ● | M | 3 hinges/door (SB.SA.SA1) | |||
| K51M-500-D3 | ● | ● | ● | H | 3 hinges/door (DS.HA.SB) | ||
| 1-3/4″ ~ 2-1/4″ < 8’-0 x 4′-0 ≤ 260 lbs |
K51M-500-C4 | ● | ● | M | 4 hinges/door (SA.SB.SA.SA1) | ||
| K51M-500-D4 | ● | ● | ● | H | 4 hinges/door (DS.SB.HA.SA1) | ||
| 1-3/4″ ~ 2-1/4″ < 8’-0 x 4′-0 ≤ 330 lbs |
K51M-500-A4 | ● | M | 4 hinges/door (DS,SA,SA,SA1) | |||
| K51M-500-B4 | ● | ● | H | 4 hinges/door (DS.SA.HA.SA1) | |||
1. We provide additional door stop ( at 90°) features for all models. Email to request a quotation.
2. Learn more about Waterson hinge design (SA,SA1,SB,…)
3. Learn more about mechanical or hydraulic hybrid closing types, or watch video
4. Please contact us directly concerning doors over the above specifications.
| Door Size | Product SKU Full mortise 5*5 |
FEATURES Door Range ≤ 120° |
Closing Type
Mechanical Only — M |
Hinge Qty
Hinge Type |
Finish | ||
|---|---|---|---|---|---|---|---|
| Self-closing | Fluid Motion | 90°Hold-open | |||||
| 1-3/4″ ~ 2-1/4″ < 7’-0 x 4′-0 ≤ 260 lbs |
K51M-500D-A3 | ● | M | 3 hinges/door (SA.SA.SA1) | Stocking
US32D-630-Satin Stainless Steel Special Order Matching-US10B-695-Dark Satin Bronze – Powder coating
|
||
| K51M-500D-B3 | ● | ● |
H |
3 hinges/door (DS.HA.SA1) | |||
| K51M-500D-C3 | ● | ● | M | 3 hinges/door (SB.SA.SA1) | |||
| K51M-500D-D3 | ● | ● | ● | H | 3 hinges/door (DS.HA.SB) | ||
| 1-3/4″ ~ 2-1/4″ < 8’-0 x 4′-0 ≤ 260 lbs |
K51M-500D-C4 | ● | ● | M | 4 hinges/door (SA.SB.SA.SA1) | ||
| K51M-500D-D4 | ● | ● | ● | H | 4 hinges/door (DS.SB.HA.SA1) | ||
| 1-3/4″ ~ 2-1/4″ < 8’-0 x 4′-0 ≤ 330 lbs |
K51M-500D-A4 | ● | M | 4 hinges/door (DS,SA,SA,SA1) | |||
| K51M-500D-B4 | ● | ● | H | 4 hinges/door (DS.SA.HA.SA1) | |||
1. We provide additional door stop ( at 90°) features for all models. Email to request a quotation.
2. Learn more about Waterson hinge design (SA,SA1,SB,…)
3. Learn more about mechanical or hydraulic hybrid closing types, or watch video
4. Please contact us directly concerning doors over the above specifications.
Specification
OTHER COUNTRIES
| Model | DIM | Door Thickness | Gauge | Finish | Door Spec |
Self-closing Combination |
Self-closing & Hold-open Combination |
|---|---|---|---|---|---|---|---|
| K51M-640 | 6″ x 4″ (H*W) | 35-45 mm | 4.1 mm | Satin Brushed
Polished Golden Black |
≤ 70kg <1800 x 1250 mm |
( DS, HA ) = ( Top, Bottom) ( SA, SA1 ) =( Top, Bottom) |
( SB, HS ) = ( Top, Bottom) |
| K51M-645 | 6″ x 4.5″ (H*W) | 40-50 mm | |||||
| K51M-650 | 6″ x 5″ (H*W) | 45-55 mm | ≤ 120kg <2200 x 1250 mm |
( DS, HA, SA1 ) = (Top, Middle, Bottom) ( SA, SA, SA1 ) = (Top, Middle, Bottom) |
( SB, SA, HS ) = (Top, Middle, Bottom) ( SB, SA, SA1 ) = (Top, Middle, Bottom) |
||
| K51M-655 | 6″ x 5.5″ (H*W) | 50-60 mm | |||||
| K51M-660 | 6″ x 6″ (H*W) | 55-65 mm |
Comparison With Door Closer
| Waterson Self-closing hinge | Traditional door closer | |
|---|---|---|
| Position | On door and easy as regular hinges |
On door and need to preserve installation space |
| Aesthetics | Elegant and minimized visual intrusion |
Bulky and maximized visual intrusion |
| Opening | Effortless |
Strenuous |
| Outdoor | Yes, High Weather resistance |
Yes and easily broken |
| Fire resistance | Yes | Yes |
| Durability | 1 million cycle test passed |
Mostly 20 thousand cycles depending on brands |
| Cost | Hardware+ Installation+ Maintenance
Low total cost |
Hardware+ Installation+ Maintenance
High total cost |
