SOSS Door Hardware
SOSS Door Hardware is a United States manufacturer of concealed ("invisible") hinges and door hardware, now part of Allegion. SOSS pioneered the invisible hinge and continues to specialize in concealed hinges for residential, architectural and commercial doors, including the 101, 103, 204, 208, 212, 216/416, 218/418 and 518 series, plus barrel hinges, quadrant hinges, power-transfer hinges and the Invisible Closer concealed door closer. SOSS products are used in high-end residential, hospitality and architectural projects where a flush, hidden-hinge aesthetic is required, and are distributed through a dealer network in the United States and internationally.
Country🇺🇸 United States
Products22
Updated2026-06-22
Products by SOSS Door Hardware · showing 22
FIT · Connecting fittingsInvisible Hinge Router Guide Template
Typeinstallation guide
Upd. 2026-06-24View →
HNG · HingesModel 100 Invisible HingeMin material thickness inch0.5
Max material thickness inch0.625
Dutynon-load bearing
Upd. 2026-06-24View →
HNG · HingesModel 101 Invisible HingeMin material thickness1/2"
Max material thickness3/4"
Fire ratingNo
Upd. 2026-06-23View →
HNG · HingesModel 101 Invisible HingeMin material thickness inch0.5
Max material thickness inch0.625
Dutylight duty
Upd. 2026-06-24View →
HNG · HingesModel 101SS Stainless Steel Invisible HingeMin material thickness inch0.5
Max material thickness inch0.625
Material316 stainless steel
Upd. 2026-06-24View →
HNG · HingesModel 103 Invisible HingeMin material thickness inch0.75
Max material thickness inch1
Dutystandard
Upd. 2026-06-24View →
HNG · HingesModel 203 Invisible HingeMin material thickness inch0.75
Max material thickness inch1
Dutymedium
Upd. 2026-06-24View →
HNG · HingesModel 203SS Stainless Steel Invisible HingeMin material thickness inch0.75
Max material thickness inch1
Material316 stainless steel
Upd. 2026-06-24View →
HNG · HingesModel 204 Invisible HingeMin material thickness inch0.75
Max material thickness inch1
Dutyheavy
Upd. 2026-06-24View →
HNG · HingesModel 204SS Stainless Steel Invisible HingeMin material thickness inch0.75
Max material thickness inch1
Material316 stainless steel
Upd. 2026-06-24View →
HNG · HingesModel 218 Invisible HingeMin material thickness1-3/4"
Max material thickness2"
Fire rating20 minutes
Upd. 2026-06-23View →
HNG · HingesModel 218IC Invisible Closer HingeMin material thickness1-3/4"
Max material thickness1-3/4"
Fire rating20 minutes
Upd. 2026-06-23View →
HNG · HingesModel 418 Alloy Steel Invisible HingeMin material thickness1-3/4"
Max material thickness1-3/4"
Fire rating90/180 minutes
Upd. 2026-06-23View →
HNG · HingesModel 418SSPT Stainless Steel Power Transfer Invisible HingeMin material thickness1-3/4"
Max material thickness1-3/4"
Fire rating90/180 minutes
Upd. 2026-06-23View →
HNG · HingesModel 518 Wrap-Around Invisible HingeMin material thickness1-3/4"
Max material thicknessN/A
Fire ratingNo
Upd. 2026-06-23View →
FIT · Connecting fittingsSOSS Invisible Hinge Router Guide SystemTool typerouter guide
Applicationinstallation accessory
Upd. 2026-06-23View →
HNG · HingesSOSS Model 218 Invisible HingeMin material thickness in1.75
Max material thickness in2
Fire rating min20
Upd. 2026-06-23View →
HNG · HingesSOSS Model 218IC Invisible Closer HingeMin material thickness in1.75
Max material thickness in2
Has spring closerYes
Upd. 2026-06-23View →
ELC · Electrification & powerSOSS Model 218PT Power Transfer Invisible HingeMin material thickness in1.75
Max material thickness in2
Power transfer amps2.5
Upd. 2026-06-23View →
HNG · HingesSOSS Model 418 Invisible HingeMin material thickness in1.75
Max material thickness in2
Fire rating min90
Upd. 2026-06-23View →
HNG · HingesSOSS Model 418IC Invisible Closer HingeMin material thickness in1.75
Max material thickness in2
Has spring closerYes
Upd. 2026-06-23View →
ELC · Electrification & powerSOSS Model 418PT Power Transfer Invisible HingeMin material thickness in1.75
Max material thickness in2
Power transfer amps2.5
Upd. 2026-06-23View →
Product families
- Invisible Hinges (101, 103, 204, 208, 212, 216/416, 218/418, 518 series)
- Light Duty SOSS Invisible Hinges
- Barrel Hinge
- Quadrant Hinge
- SOSS Power Transfer Hinge
- Invisible Closer (concealed door closer)
- Accessories
Sources
- SOSS Door Hardware — official site (invisible hinges) — verified 2026-06-22
- SOSS — Browse products (invisible hinges, closer, accessories) — verified 2026-06-22
Manufacturer id: soss · last updated 2026-06-22