SOSS 220IC Series Invisible Spring Closer Hinge with 20 Minute Fire Rating (7", 2" Minimum Door Thickness)
The SOSS 220IC Invisible Hinge is a 7" spring closer hinge engineered for doors with a 2" minimum material thickness. Constructed of zinc and steel with nylon links for added strength and durability, this Underwriters Laboratories labeled hinge carries a 20 minute fire rating for use on hollow metal, sheet metal, tin clad, steel composite, or wood core swinging fire doors and frames. Totally invisible from either side when the door is closed, the 220IC combines the function of a hinge and self-closing device in a single, concealed unit suited for full sized entry applications on metal or wood doors.
Key Features
- Door Thickness Compatibility: Designed for doors with a 2" minimum material thickness, ideal for full sized entry, metal, and wood door applications.
- 7" Spring Closer Hinge: Compact 7" size combines hinge and self-closing functionality in a single concealed unit.
- Fully Adjustable Closure Rate: Closure speed is completely adjustable with an allen wrench after installation, with no need to remove the spring closer.
- Flexible Installation: Can be installed either inside the door itself or inside the door jamb, and opens a full 180° as a single action hinge.
- Durable Construction: Made of zinc and steel materials with nylon links that provide added strength and durability for demanding commercial use.
- Totally Invisible Design: The closer is completely hidden from view on both sides of the door when closed, preserving clean sightlines.
- Fire Door Application Guidance: Allow one closer for every 55 lbs of door weight or portion thereof; fire rated applications also require one fire rated hinge for every 20" of door height or fraction thereof, with the higher calculated quantity governing.
- Hardware Included: Wood and machine screws are included for straightforward installation.
Certifications & Compliance
- Underwriters Laboratories (UL) Labeled
- 20 Minute Fire Rating for hollow metal, sheet metal, tin clad, steel composite, and wood core swinging fire doors and frames
Technical Specifications
- Subcategory: Hinges and Pivots
- Product Group: Door Hinges and Pivots
- Product Subgroup: Spring Hinges
- Product Type: Spring Hinges
- Commercial/Residential: Commercial
- Duty Level: Heavy Duty
- Electronic: No
- Corner Type: Radius
- Series: 220 Series
- Collection: 220 Series
- Product Function: Spring Hinges
- Product Size: 7"
- Product Category: Door Hinges and Pivots
- Department: Door Hardware
- Application: Full Sized Entry, Metal, Wood
- Min. Material Thickness: 2″
- Fire Rating: 20 Minute
- Power Transfer: No
- Closer: Yes
- Counter Bored Screw Holes: No
- Screws Included: Wood and Machine
- Packaging: 1 / Box = 1 Each
- Packages Per Container: 1 Each
- Price Per: Each
Typical Applications
- Commercial Office Buildings
- Educational Facilities
- Healthcare Institutions
- Retail Establishments
- Multi-Tenant Residential Properties
- Government and Municipal Buildings
- Fire Rated Door Assemblies
Why SOSS 220IC?
SOSS 220IC hinges deliver professional-grade reliability with a durable zinc and steel construction reinforced by nylon links, backed by an Underwriters Laboratories 20 minute fire rating for demanding commercial fire door assemblies. The fully adjustable closure rate and totally invisible design make it a dependable choice where both clean aesthetics and consistent self-closing performance are required.
Manufacturer Resources
Product Specs
- Subcategory:
- Hinges and Pivots
- Product Group:
- Door Hinges and Pivots
- Product Subgroup:
- Spring Hinges
- Product Type:
- Spring Hinges
- Commercial/Residential:
- Commercial
- Duty Level:
- Heavy Duty
- Electronic:
- No
- Corner Type:
- Radius
- Series:
- 220 Series
- Collection:
- 220 Series
- Product Function:
- Spring Hinges
- Product Size:
- 7"
- Product Category:
- Door Hinges and Pivots
- Product Substrate:
- Zinc and Steel
- Department:
- Door Hardware