Commercial 5 Inch Self Closing Door Hinges
Stainless Steel Heavy Duty
Waterson’s commercial 5-inch hinges are durable and versatile, designed for high-traffic areas and fire-rated doors. Fully adjustable, the 5-inch door hinges provide precise control over closing speed and backcheck, ensuring smooth operation. Made from high-quality materials, these hinges are built to withstand frequent use and comply with ADA standards for speed control, closing force, and door clearance.
Function Model
✓ A:Purely Mechanical ✓ B:Hydraulic Hybrid ✓ C:Mechanical + Hold Open ✓ D:Hydraulic + Hold Open
Code Compliant
✓ ADA Compliant: Opening force < 5 lbs, closing speed > 5 seconds ✓ UL Listed:Meets NFPA 3 hrs fire-rated code ✓ ANSI/BHMA A156.17:Grade One, one million cycles test ✓ ANSI/BHMA A156.7:Standard hinge template
Waterson Mechanical vs. Hydraulic Self Closing Hinges
Each hinge has two distinct functions, one adjusted from the hinge top, and the other from the bottom. Choose either mechanical self-closing door hinges or hydraulic hybrid soft-close ones depending on your particular closing needs. For further information, check Waterson Mechanical vs Hydraulic Self Closing Hinges
Note: Waterson hinges are non-handed and can be inverted.
Waterson Commercial 5 Inch Door Hinges Type
Each 5″ hinge has two distinct functions, one adjusted from the hinge top, and the other from the bottom. Note: Waterson hinges are non-handed and can be inverted.
How to Select Waterson 5 Inch Self Closing Hinges
Every Waterson self-closing hinge has a part number that tells you exactly what you are ordering. Read it from left to right: material, hinge style, hinge size, function model and hinges per set, finish, then any options.
For example, K51M-500D-A3-630 WP01 is a Type 304 stainless steel, full mortise hinge in 5″ x 5″, 0.190″ hinge gauge, a purely mechanical set of 3 hinges, in satin stainless steel finish (630), with a 90° door stop.
Waterson 5 Inch Door Hinges Configuration and Model
For doors up to 7′-0″ x 4′-0″ and 260 lbs, use a 3-hinge set. For doors up to 8′-0″ x 4′-0″, or doors up to 330 lbs, use a 4-hinge set. All sets fit door thickness from 1-3/4″ to 2-1/4″. See how many self closing hinges per door.
Both are 5″ x 5″ full mortise hinges. K51M-500 uses a 0.146″ gauge leaf, while K51M-500D uses a heavier 0.190″ gauge leaf for doors that need extra strengt
Yes. They are UL Listed for fire doors up to 3 hours and meet NFPA 80 and NFPA 101 self-closing requirements. Heavy duty use for a large fire rated exit door. For further information, check our Self Closing Door Hinges for Fire Doors.
Various businesses, including hotels, schools, and retail stores, choose Waterson 5 inch heavy duty door hinges for durability, design, and sustainability.
St. Mary’s Episcopal Church
Replace a bulky surface closer on a historic 48″W church door
✓ No overhead closer
✓ Flat black finish
✓ Reliable latching
Waterson 5 Inch Door Hinges are easily adjustable and re-adjustable simply with two Allen wrenches in just minutes. Follow our procedure to get the optimal closing experience.
Please note that Waterson offers a variety of product codes including K51M, K51SWRH, K51P, K51L, and K51GG, among others. However, the adjustment process remains consistent and is categorized based on codes A, B, C, and D. Below are the videos on how to adjust:
K51M-A3 (SA.SA.SA1)
K51M-B3 (DS.HA.SA)
K51M-C3 (SB.SA.SA1)
K51M-D3 (DS.HA.SB)
Choose either mechanical self-closing spring-loaded hinges or hydraulic hybrid soft-close ones depending on your particular closing needs.
Just a heads-up: Waterson self-closing hinges start at 4″x4″. If you’re in need of smaller self-closing hinges, we’d recommend checking out some other resources! Thank you!
a purely mechanical set of 3 hinges, in satin stainless steel finish (630), with a 90° door stop.
