Ultra Thin 5 Inch Hidden Door Hinges for Secret Doors, 304 Stainless Steel, Heavy Duty Invisible Hinges With Silent 110 Degree Opening, 88 Lb Load Capacity, 3D Adjustable Concealed Hinge System, Easy Install, 2 Pack

Slim 5in Hidden Door Hinges for Secret Doors 304 Stainless
✔️ 3D adjust; 110° opening; 88 lb load; rustproof 304 SS

These concealed hinges are ultra-thin 5-inch hinges designed to hide inside door frames, giving you a seamless appearance for secret doors, hidden bookcases, or feature walls. They’re ideal for DIY projects and professional installations where a clean, unobtrusive look matters.

✅ Material: 304 stainless steel for rust resistance
✅ Load capacity: up to 88 lb per pair
✅ Opening angle: 110 degrees
✅ 3D adjustment: vertical ±2.5 mm, horizontal ±2.0 mm, depth ±1.25 mm
✅ Ultra-thin profile with minimal mortising for fast install
✅ Pack includes 2 hinges and installation template
✅ Silent operation with sealed bearings and spacers

💡 What is a hidden door hinge used for in cabinetry and secret doors?

Hidden hinges are handy for clean flush panels and unseen entryways. - handy for concealed doors in rooms and bookcases - easy 3D adjustment to align perfectly without removing the door - durable stainless steel stands up to wear - silent operation reduces noise when closing