SOSS 218 Heavy Duty Invisible Hinge for 1-3/4" Minimum Door Thickness, UL Listed, 20-Minute Fire-Rated
The SOSS® Invisible Hinge model #218 is ideal for use in wood or metal constructions that measure between 1-3/4″ and 2″ in thickness. Made from a combination of zinc and steel, this hinge is reinforced with nylon links for superior strength and durability. SOSS® Invisible Hinges can open a full 180° and are designed as a single action hinge.
Now with a 20 Minute UL Fire rating!
Underwriters Laboratories has designated the model #218 SOSS® Invisible Hinge as appropriate for installation on hollow metal, sheet metal, tin clad, steel composite, or wood core swinging fire doors and frames with a 20-minute fire rating.
For fire-rated doors: It is advisable to use at least one fire-rated hinge for every 20 inches of door height or portion thereof, or one hinge for every 60 pounds or fraction thereof, depending on which calculation necessitates a greater number of hinges.

Dimensions
| A | 1-1/8″ (28.58mm) |
| B | 7/8″ (22.23mm) |
| C | 4-5/8″ (117.48mm) |
| D | 3/8″ (9.53mm) |
| E | 1/4″ (6.35mm) |
| F | 2-15/32″ (62.71mm) |
| G | 1/16″ (1.59mm) |
| H | 1-41/64″ (41.67mm) |
| I | 13/32″ (10.32mm) |
| Min. Matl. Thickness | 1-3/4″ (44.45mm) |
| Wood Screw Sizes | #10×1-1/2″ (4.8x38mm) |
| Soft Wood Pilot Hole | No. 43 |
| Hard Wood Pilot Hole | No. 31 |
| Machine Screw Sizes | #10-24×1″ |
| Hinge Weight | 1.86 lb. |
Additional Information
| Application | Full Sized Entry, Metal, Wood |
|---|---|
| Min. Material Thickness | 1-3/4″ |
| Fire Rating | 20 Minutes |
| Power Transfer | No |
| Closer | No |
| Counter Bored Screw Holes | No |
| Screws Included | Wood and Machine |
| Packaging | 1 / Box = 1 Each |
| Packages Per Container | 1 Each |
| Price Per | Each |
| General - US Finishes | US26D - Satin Chrome or US26 - Polished Chrome or US15 - Satin Nickel or US3 - Polished Brass or US4 - Satin Brass or US5 - Blackened Satin Brass or US14 - Polished Nickel or US19 - Flat Black or UNP - Unplated or US10BL - Oil Rubbed Bronze Lacquered |
| Brand | SOSS |
| Hinge Type | Invisible |
| Base Material | Steel |
| Door Thickness | 1-3/4" Dr Thickness, 2" Dr Thickness |
Recently Viewed Items