CERTIFICATION | ADA, UL compliant Grade 1
ADVANCED ENGINEERING | Combining door closers, spring hinges and an optional hold open feature into one attractive & unobtrusive component.
FULLY ADJUSTABLE | Closing force and speed adjustable according to environment needs.
PRECISION | Digital panel tension locking capability.
DURABLE | Fully weather resistant stainless steel construction — purely mechanical, NO LEAKING.
ApplicationHotel guest room / Metal door / Commercial fire-proof door

Type:
- SB Hinge – Door closing+control closing speed+hold-open at 85+/-5
- SA1 Hinge – Controls Closing Speed from 0-20 and Closing Force.
- DS: Provides Closing Force, double power output.
- HA: Hydraulic buffer in 0-20+control speed in 20-90
- S: Spring Closing Force
- A: 20-90 Closing Speed Control
- A1: 0-20 Closing Speed Control
- H: Hydraulic buffer
- B: Hold-openat 85+/-5
Included Products
1. 3mm hex wrench*1pc
2. 5mm hex wrench*1pc
3. For the wood door – Crosshead self-tapping screws (SUS#12-24 UNC-1/2″L)
4. For the metal door – Crosshead machine screws (SUS#12×1-1/4″(31.75mm)L)

Door Hardware

Waterson Heavy Duty Commercial Fully Adjustable Self-Closing Door Hinge 3-Pack 4.5″ x 4.5″ K51M-450 (SA,SA,SA1)