Installation Chart
Wide Range of Sizes
Twenty-nine standard sizes, from light duty
to heavy duty. Our larger sizes will handle
doors of nearly any size.
Choice of Finishes
29 sizes available from light to heavy duty.
Our standard fi nishes are:
Satin Brass – US4 (BHMA #678)
Satin Chrome – US26D (BHMA #682)
Satin Nickel – US15 (BHMA #619E)
Bright Chrome – US26 (BHMA #681)
Bright Brass – US3 (BHMA #677)
Bright Nickel – US14 (BHMA #618E)
Unplated – UNP
Black – E-Coat
(Please refer to price list for available
fi nishes for each hinge size.)
Security
When closed, the SOSS Invisible Hinge
cannot be seen or tampered with.
When opened, the riveted hinge pin is
non-removable.
Safety
The moving pivot point remains inside
the hinge during travel until fully opened,
eliminating an external pinch point on the
back side of the door.
Strength
The installed hinge is fi rmly anchored in a
deep, full mortise, which assists the screws
in supporting the door, assuring a stronger,
more rigid installation.
Superior Construction
SOSS Invisible Hinges are designed to give
dependable operation for years. Standard
hinges are made of high strength plated
steel and heavy duty zinc alloy castings.
A selection of hinges are made of 316
Stainless Steel, see page 9 for available
sizes. The #418 and #420 are available in
Alloy Steel as well as Stainless Steel, see
page 8 for further information.
Beautiful When Open...
Invisible When Closed
Smooth Operation
All hinges have been designed to give
smooth performance. The engineered,
laminated link construction of the #218 and
#220 models reduces friction for smooth,
free hinge operation. On models #216,
#218 and #220, an anti-friction space age
material is used.
Fire Rated
SOSS Invisible Hinges are available in fi re
rated versions, from 20 minutes to three
hours by Underwriters Laboratories UL.
See page 8.
Engineering/Design Assistance
For special applications, unusual sizes and
weights, engineering and design assistance
is available free of charge. Consult the
SOSS offi ce.
314
205
208
212
216
218
220
METAL
14.29mm 9/16
15.88mm
12.70mm
17.46mm
19.05mm
25.40mm
28.56mm
34.93mm
44.45mm
50.80mm
5/8
1/2
11/16
3/4
1
1-1/8
1-3/8
1-3/4
2
WOOD & METAL
44
4
4
4
4
4
4
4
4
4
4
204
114
106
100
101
303
103
203
4
2
4
2
33
3
2
33
22
3
2
3
22
3
2
3
2
3
3
2
2
3
2
3
3
2
2
3
70 1,750
1,250
700
500
300
400
900
200
100
50
60
40
30
15
20
10
5
4
in mm
200
500
300
150
80
40
20
10
400
100
60
15
30
180
90
45
35
70
25
15
10
7
5
135
225
kg lb
Door Width
in Inches
and Millimeters
Door Weight in
Pounds and
Kilograms
Minimum Door Thickness
Number
of Hinges
Required
Line A Line A
Door Material
Hinge Number
314
205
208
212
216
218
220
204
114
106
100
101
303
103
203
Hinge Number
The nomograph below has been
developed to assist you in determining
the correct size and number of hinges
for your installation.
If the information you need is off the chart,
consult the factory.
The general rule used to determine the
number of hinges is:
Every door should be provided with at
least one hinge for every thirty inches
in height or portion thereof; however,
more hinges may be required per chart
below.
For example, a 90” door needs three hinges
and a 91” door needs four.
Directions
After determining the weight and width
of the door, draw a straight line through
the door width and weight to line “A”, as
indicated in the example. Continue with
a horizontal line sideways from the point
of intersection with line “A” until the door
thickness is reached. Use the number of
hinges and the model number indicated
on this line.
To use this chart as a working guide, we
suggest that you photocopy this page.
Example
A wood door 30” wide, 200 lbs., with
a thickness of 1
3
⁄4” will require four
#218 SOSS Invisible Hinges. The red line
shows how the sizing and selection were
determined from the nomograph.
The nomograph above has been
dev
eloped to assist you in determining
the correct size and number of hinges
for your installation.
Note: For #418 and #420 hinge, use formula
described on page 7.
Choosing the Right Hinge for the Job
Two SOSS Door Hardware Pioneer, Ohio, U.S.A. 800-922-6957 www.soss.com