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Loose Pin Welding Hinge WH015

80×50×2.8 100×60×2.8 150×60×4.0 120×100×4.0

Also referred to as bullet hinges, these hinges are designed to fit compact spaces and narrow frames. The hinge pin is fixed to the frame leaf, allowing the door to be lifted off easily without detaching the pin. Models with a 360° swing feature a small triangular plate for welding to the door frame, while those with a 270° swing have a body that welds directly to the frame.

· 304 stainless steel hinges provide higher corrosion resistance than low-carbon steel and offer good resistance to many chemicals.

· 316 stainless steel hinges deliver superior resistance to chemicals and salt water.

· Aluminum hinges weigh roughly half as much as low-carbon steel and offer moderate corrosion resistance.

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Product Features

Weld-On Hinges by TDC—purpose-built for steel gates, doors, trailers, and enclosures where a permanent weld joint is required. Offered in bullet (barrel), butt, and strap styles with fixed or lift-off pins. Heavy-duty barrels use hardened pins with bronze bushings or sealed bearings for tight tolerances and smooth, low-friction swing; select models include grease (zerk) fittings.


Materials include carbon steel, stainless 304/316, and galvanized options, supplied raw or primer-coated for clean weld prep. From compact toolbox/smoker sizes to high-capacity hinges for automated operators and security doors, choose non-removable pins for security or lift-off pairs for quick removal. Sold individually—load ratings, CAD, OEM/wholesale, and custom specs available direct from the source.


Salt Fog Spray Testing: 

In 312 hours of salt fog spray testing (BHMA A138.18), standard zinc plated hardware showed significant corrosion. In contrast, TDC hardware finished with our self-developed protective coating demonstrated excellent resistance with very little deterioration.


 ltem
Product Name and SpecificationUnit Wooden case CartonQuantityG.W/N.W（kg）Packing size（cm）

80×50×2.8
Pcs
√9619.5/18.531×19.5×11.5

100×60×2.8
Pcs
√7225.5/24.534.5×14.5×16

150×60×4.0
Pcs
√4825/2424×20×17.5

120×100×4.0
Pcs
√4818.5/17.526.5×18.5×18.5


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With an annual output exceeding 500 million hinges and distribution to over 146 countries, TDC delivers OEM customization, efficient shipping with tight packaging, and consistent reliability for demanding industrial and commercial applications.

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

CODEFINISHDESCRIPTIONCODEFINISHDESCRIPTION
20330US3Polished Brass20335BUS15Satin Nickel
20331US4Satin Brass20336US15AAntique Nickel
20332US5Antique Brass20337US26Polished Chrome
20334US10AAntique Bronze20338US26DSatin Chrome
20335US10BOil-rubbed Bronze20339DUS1DMatte Black


  • satin-nickel-door-hinges
    Popular Pick: Satin Nickle Hinges

    Experience the refined Satin Nickel (US15) finish on TDC Hinges—an industry‑favorite hinge coating that combines sleek aesthetics with durable performance. Featuring a low‑gloss, subtly lustrous surface, this finish resists fingerprints and smudges, ensuring doors maintain a clean, professional look over time.

    Built with a high-quality nickel plating process over plated steel or solid brass substrates, the Satin Nickel coating offers strong corrosion resistance while delivering a smooth, modern sheen compatible with a wide range of décor styles—from contemporary to transitional interiors.

    This finish is also easier to clean than textured alternatives, allowing maintenance teams or homeowners to restore its soft shimmer with just a damp cloth and mild cleaner. For contractors and builders, choosing TDC’s US15 hinges adds consistent visual harmony when paired with matching knobs, locks, or lever handles—offering polished cohesion without costly upgrades.

    TDC’s Satin Nickel (US15) hinges deliver a perfect blend of style, durability, and low‑effort upkeep—making them a go‑to finish for high‑end projects seeking subtle elegance with lasting performance.

  • Top Seller: Matte Black Hinges

    A top-selling choice prized for both its aesthetic impact and practical resilience. The non‑reflective matte surface delivers a sleek, modern look that blends seamlessly with minimalist, industrial, or traditional styles, while artfully camouflaging itself on darker doors to maintain visual harmony.

    More than just style, the coating acts as a hard-wearing shield that resists scratches, fingerprints, and corrosion, reducing maintenance demands and keeping hinges looking sharp over time.

    Built over solid extruded brass or plated steel, this finish enhances durability without compromising design flexibility—whether matched with matching levers, locks, or décor—creating a cohesive hardware ensemble throughout the space.

    TDC’s Matte Black (US 19) hinges offer a lasting blend of modern elegance, ease of upkeep, and design cohesion—strongly recommended for style-conscious builders, architects, and homeowners alike.

  • Premium Style: Satin Brass Hinges

    Enhance your doors with the warm, luxurious appeal of Satin Brass (US 4) hinges from TDC Hinges. This premium satin-brass coating delivers a soft golden glow with a muted sheen—perfectly balancing elegance and restraint for contemporary, transitional, or classic interiors. Unlike highly reflective polished finishes, Satin Brass resists fingerprints, smudges, and water spots thanks to its fine matte surface, providing low‑maintenance upkeep even in busy, high‑traffic environments.

    Crafted over solid brass or plated steel substrates, this finish combines excellent corrosion resistance and lasting durability, preserving its inviting hue through years of use without tarnishing quickly. The soft satin texture subtly conceals minor blemishes or scratches, keeping a pristine look longer than polished alternatives.

    Widely sought after by designers and builders for its versatile aesthetic compatibility, US 4 Satin Brass pairs effortlessly with coordinating hardware—creating a cohesive, upscale look across hinges, levers, and pulls.

    TDC’s Satin Brass hinges offer a refined aesthetic, reliable performance, and ease of care—ideal for projects where style and longevity go hand in hand.

RESOURCES

  • 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.

  • 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.

  • Comprehensive Guide on Types of Exterior Door Hinges

    You may encounter several types of exterior door hinges, such as butt, ball bearing, and concealed options. Hinge selection depends on door thickness, height, and security requirements. The table below outlines typical hinge sizes and recommendations for an exterior door:

  • Choosing the Right Stainless Steel Spring Hinges for Industrial Doors

    Stainless steel spring hinges are robust butt hinges with an integral torsion spring in the barrel. In effect they act like standard door hinges but use a coiled spring to control closing force. Made from high-grade stainless steel (often type 304 or 316), these hinges resist rust and mechanical wear. This corrosion resistance makes them ideal for outdoor, coastal, or industrial environments.

  • Adjusting Self-Closing Hinge Tension

    Self-closing hinges come in various forms (spring-loaded, adjustable-tension, hydraulic, etc.) and are used on residential and commercial doors as well as cabinets to ensure doors close automatically.

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