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Stainless Steel Commercial Hinge Square Corner

4"X4"X3.0-4BB 4.5"X4"X3.0-4BB 4.5"X4.5"X3.3-2BB NRP

A durable stainless steel hinge engineered for smooth, quiet movement and superior corrosion resistance—ideal for cabinets, doors, outdoor gates, and marine environments.

This precision-made stainless steel hinge delivers stable alignment, rust-proof performance, and clean modern lines. Easy to install and built for heavy daily use indoors or outdoors.

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STRONG DURABLE FINISH:

The varied finish of these door hinges with concealed bearings provides a long-lasting distinguished addition to your doors.

SUPERIOR QUALITY：

Dependable Direct hinges are machined using high-quality durable materials that are meant to last.

SIZE: 

Available from 3.5" to 4.5".

REVERSIBLE: 

A reversible hinge means you can use this hinge whether your door is a left hand door or right hand door.

WHAT'S INCLUDED： 

Included in this package is 1 door hinges and all necessary screws for mounting.

Hinge Size (hgt. x wdth.)Number
Holes		Gauge of
metal		Pin
Diameter		Screw SizeQuantityAvg. Weight
Per Case (lbs.)
InchesMillimetersMachineWoodInner BoxCase
3.5" x 3.5"88.9 x 88.960.087"0.232"None#9 x 3/4"Bulk100 Pcs.40
4” x 4"101.6 x 101.680.087"0.232"None#9 x 1"Bulk100 Pcs.52

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High‑performance stainless steel door hinges by TDC, featuring ball bearings, self‑lubrication and long‑lasting rust protection. Bulk & OEM options available.

Why Choose TDC ?

  • Nationwide Stock Availability:

    We have ready-to-ship inventory in warehouses across the Eastern, Central, and Western US, guaranteeing quick and dependable delivery right to your doorstep.

  • Amazon Market Leadership:

    Our hinges boast a remarkable 40% share of the market on Amazon, highlighting their popularity and the trust they’ve earned from consumers.

  • Outstanding Value:

    We merge top-notch quality with attractive pricing, providing your customers with unparalleled value.

  • TDC Brand Advantage:

    TDC stands as a self-owned brand that embodies innovation, durability, and reliability, making it a trusted option for your inventory needs.

  • Superior Customer Service:

    We take great pride in delivering exceptional service, from effortless order processing to committed support, guaranteeing a seamless collaboration.

  • OEM&ODM:

    We can process or customize according to customer needs. Patent certification.

  • Global Market:

    Covering the Americas, Middle East and and various other regions around the world.

  • One-Stop Solution:

    Your professional door service expert. Sufficient stock levels in U.S. warehouses.

Different Finishes

Finish SymbolsDescriptionSteelSeries StainlessBrass/Bronze
US1BBright Japan601N/A601
US1DMatte blackN/AN/AN/A
US2CZinc plated, commercial602N/AN/A
US2CDZinc plated, satin603N/AN/A
US2DZinc dichromate, yellowN/AN/AN/A
US2GZinc plated, Gov. spec603N/AN/A
US2HHot dipped galvanizedN/AN/AN/A
US3Polished brass632N/A605
US3/4Brass platedN/AN/AN/A
US4Satin brass633N/A606
US5Antique Brass Plated638N/A609
US7Nickel oxidized and highlighted636N/A610
US9Bright bronze637N/A611
US9ABright bronze, no lacquerN/AN/AN/A
US10Satin bronze639N/A612
US10AAntique bronze lacquered641N/A614
US10BAntique bronze, oiled640N/A613
US11PAntique bronze, black640N/A613
US12PTuscany bronze lacquered716N/AN/A
US14Bright nickel645N/A618
US14ABright nickel, oxidized N/AN/AN/A
US14BBright black nickelN/AN/AN/A
US15Satin nickel646N/A619
US15ASatin, nickel, nickel oxidized647N/A620
US17ABlack nickel dull648N/A621
US19Matte blackN/AN/AN/A
US20Statuary bronze, light649N/A623
US20AStatuary bronze, dark 650N/A624
US26Polished chromium plated 651N/A625
US26DSatin chromium plated652N/A626
US32Stainless steel metal, brightN/A629N/A
US32DStainless steel metal, satinN/A630N/A
OCAntique copperN/AN/AN/A
USPPrime coat, beige600N/A600
GYGrey enamelN/AN/AN/A
LS“Luma Sheen”(R)689N/A689
L1“Luma Color”(R) black693N/A693
L2“Luma Color”(R) dark bronze695N/A695
L3“Luma Color”(R) medium bronze694N/A694
  • Black Door Hinges:

    TDC Hardware’s Matte Black Door Hinges (US1D/US19) are crafted from high-quality steel and built to ANSI/BHMA Grade 1 standards, ensuring durability and smooth performance. Featuring a sleek matte black finish, these hinges resist fingerprints, scratches, and corrosion, making them ideal for modern homes, offices, and commercial spaces. Available in various sizes and configurations, they offer easy installation, reliable function, and are perfect for bulk and OEM orders.

  • Brass Hinges:

    TDC Hardware’s US3 Polished Brass Hinges exemplify superior craftsmanship and timeless elegance, making them an ideal choice for high-end doors, cabinets, and furniture. Manufactured using high-grade main materials(Q195/Q235 Cold Rolled Steel, and Stainless Steel 201/304/316), These hinges are crafted through a carefully detailed production process that includes steel coil selection, rolling and punching, polishing, electronic plating, and precise assembly. This thorough process guarantees a long-lasting, corrosion-resistant finish that improves both performance and visual charm.

  • Brushed Nickel Door Hinges:

    Transform your doors with our brushed nickel US15 door hinges. This classic finish offers rust resistance and a sleek look. Made from high - grade steel, they’re shaped, brushed, and nickel - plated for durability. Ideal for home interior doors, kitchen cabinets, and commercial spaces alike. Stylish, sturdy, and ready to enhance any project.

RESOURCES

  • How Tee Hinges Differ from Strap Hinges in 2025

    Tee hinges have a T-shape that supports light to medium doors, while large strap hinges use long arms for heavier gates or barn doors. You must choose the right hinge for durability and function.

  • Keeping Your Doors and Hinges Strong Against Wildfires and Floods

    Property owners often face severe weather challenges. Strong doors and heavy-duty door hinges play a critical role in protecting buildings. Selecting quality materials, reinforcing hardware, and scheduling routine inspections help maintain durability. Proactive care ensures these components continue to function even under extreme wildfire or flood conditions.

  • How US Tariffs Are Shaping the Residential Hinges Market in 2025

    US tariffs in 2025 have driven significant price hikes for residential hinges. Homeowners, contractors, and industry professionals now face supply chain disruptions and sourcing challenges. Immediate responses include shifting to local suppliers and adjusting project budgets.

  • What Are Heavy-duty Strap Door Hinges?

    Heavy-duty Strap Door Hinges give you a strong solution for mounting and supporting wide or heavy doors. You will notice their long-arm design offers stability and strength, making them ideal for gates, barns, and large wooden doors.

  • Heavy Duty T Hinge Guide For Easy Gate Upgrades

    You want your gate to stay strong and secure for years. A heavy duty t hinge gives you a simple way to upgrade your gate without hiring a professional. You can install these hinges yourself and see instant results. Quality hardware with the right finish keeps your gate looking good and working well. Choose the best materials and enjoy peace of mind knowing your gate stands up to daily use.

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