JIW 6 Pack Matte Black Interior Door Hinges Round 3.5" x 3.5 Inch 5/8" Radius Heavy-Duty Mat Hinge for Doors Standard Bedroom Work Office Door Hardware Removable Pin,Farm,Shed,Gate,Greenhouse Vent Window

Why I switched to these hinges

I didn’t set out to remake the look and feel of my interior doors with a box of hinges, but that’s exactly what happened. After living with a chorus of squeaks and a few rust-flecked bathroom hinges, I swapped in a set of JIW 3.5-inch matte black hinges across a bedroom, bath, and closet run. The quiet was immediate. The cleaner, more modern look was a bonus. A few weeks of daily use later, here’s what stood out—good and bad.

Build and finish

These are full-mortise, plain-bearing hinges sized 3.5" x 3.5" with a 5/8" corner radius—standard fare for most interior residential doors in North America (typically 1-3/8" thick doors). The leaves are iron and feel noticeably more robust than bargain-bin options; there’s no tinny flex, and the knuckle tolerances are tight enough that there’s minimal lateral slop when the door is open. The matte black finish is even and consistent across all six hinges in the pack. It’s a true matte—not glossy or oily—and blends well with other black hardware in the home.

The knuckle stack is uniform and the barrels line up true. On my set there were no sharp burrs; edges were clean and ready to install out of the box. JIW claims up to 270° of rotation, and while door trim will prevent you from ever using that much swing in practice, the geometry is correct: the leaves fold neatly without binding.

Fit and compatibility

If you’re replacing existing hinges, the first thing to check is your corner radius. These are 5/8" radius corners; many prehung doors use the same radius, though some older slabs and custom mortises are 1/4" radius or square. If your doors are 1/4", you’ll either see a small crescent gap at the corners or need to clean the mortise corners with a chisel to get a perfect fit. On my doors—factory mortised with 5/8" corners—the swap was a true drop-in.

Hole pattern matched my existing hinges exactly, which is typical for 3.5" residential templates. The leaf thickness is on the sturdier side; be sure your mortise depth is adequate so the leaf sits flush. If the door binds against the jamb after installation, you likely need to deepen the mortise by a hair or add a thin shim behind the opposite hinge to fine-tune the reveal.

Installation notes

The six-pack includes a full set of color-matched screws and six extra-long screws. Those long screws are more than a throw-in: they’re the easiest way to pull a sagging door back into square. I drove one long screw through the top hinge into the stud on the jamb side. The hinge tightened up without stripping, and the door edge came perfectly parallel to the strike side.

A few tips from the install:

• Replace one hinge at a time with the door in place; you won’t need to pull the slab. Start at the top.
• Pre-drill pilot holes if you’re going into hardwood jambs or reusing old holes. A dab of bar soap or wax on the screws helps them seat cleanly.
• Bring a hand screwdriver for final snugging. It’s easy to over-torque small finish screws with a drill and chew up the heads.
• If you’re mixing new and old hinges, mark the knuckle stack orientation (pins up) for consistency and clean swing.

The supplied screws bit cleanly and finished flush. I didn’t encounter any soft heads or paint chipping during install.

Performance and feel

Plain-bearing hinges don’t have the ultra-slick feel of ball-bearing hardware, but on interior doors that’s usually a non-issue. These JIW hinges swing smoothly and quietly. Out of the box, mine had a light factory lubrication that kept them hush-quiet; a single drop of light oil in the knuckle is all it took to silence one bathroom door that had a bit of preexisting squeak elsewhere in the slab. After several weeks, there’s no metal-on-metal chatter, and the doors don’t drift or self-close unexpectedly—indicating the leaves and barrels are keeping alignment.

There’s a satisfying sense of solidity to how the door moves. Push the door open, and it continues on the arc without stuttering; stop it midway, and it stays put rather than bouncing back from hinge tension. For high-traffic spots such as bedrooms and bathrooms, that’s exactly what I want.

Pin design and security considerations

There’s some confusion in the market about pins on hinges like these. Here’s what I found: on my set, the pins were tight—tight enough that they won’t walk out on their own—but removable with a punch and a few measured taps from the bottom. If you add damping oil to keep things whisper-quiet, pin removal gets harder because the lubrication also increases suction in the knuckle.

For interior doors, removable pins are convenient for pulling a slab off its hinges without backing out every screw. For exterior doors, or anywhere security matters, I’d look for security studs or non-removable pins. These hinges are plainly aimed at interior use; while they’ll work fine on shed windows or vents, they’re not stainless and shouldn’t be your first pick for a front door or a damp, unconditioned space.

Where these make sense

• Whole-house interior refresh: Swapping bright brass or tired mixed finishes for matte black unifies a space quickly.
• Standard-weight doors: Hollow-core and most solid-core interior slabs are well within the comfort zone of plain-bearing hinges like these.
• Retrofit projects: The extra-long screws are a gift for tightening loose jambs and correcting a droop without rehanging the frame.

If you’re hanging very heavy solid-core doors or expecting commercial-level traffic, step up to ball-bearing hinges. And if your doors have 1/4" radius or square-corner mortises, plan for some chiseling or choose hinges that match your existing prep.

Durability and maintenance

Iron with a painted or powder-coated finish holds up well indoors. The matte black resisted fingerprints better than I expected and wiped clean without showing shiny rub spots. If you nick the finish during installation, a black paint pen makes quick, invisible touch-ups. Keep a small bottle of light machine oil on hand; a drop on the knuckle once a year is plenty to keep things quiet.

Because these are plain bearings, there’s direct metal contact in the knuckle. That’s not a problem under normal residential loads, but if a door is rubbing or grossly out of plumb, you’ll accelerate wear. Take a few minutes during install to check reveals and latch alignment.

Drawbacks to note

• Plain bearings, not ball bearings: Fine for most interiors, but not the smoothest option for heavy doors.
• Pin removability varies by batch and lubrication: Mine were removable with effort; expect a snug fit.
• Finish specificity: They’re offered in matte black; if you’re trying to match uncommon finishes elsewhere in the home, you’ll need to source another line.
• Not stainless: For bathrooms with poor ventilation or any exterior exposure, protect the finish and monitor for corrosion at scratches.

None of these were deal-breakers for me, but they’re worth understanding before you buy, especially if you’re trying to match existing mortises or hardware standards.

Value

Buying in a six-pack makes sense. You’ll usually need three hinges per standard interior door, so a box covers two slabs or one door plus spares. The included screws—and particularly the long ones—save a run to the store. Given the build quality and the consistent finish, the per-hinge cost is attractive compared to piecemeal big-box options.

Recommendation

I recommend the JIW 3.5-inch matte black hinges for anyone updating interior doors who wants a sturdy, quiet, and clean-looking hinge at a sensible price. They dropped into my existing 5/8" radius mortises, the finish is consistent, and the included long screws are genuinely useful for tightening door geometry during a retrofit. Choose a ball-bearing, stainless, or security hinge if you’re hanging heavy slabs, dealing with moisture, or securing an exterior door. For everyday interior doors, though, this set strikes the right balance of build, ease, and value.