Aupoko 12Pcs Weld-On Bullet Hinges Set, Carbon Steel 4'' x 9/16'', Heavy Duty Detachable Pin (0.3'') for Metal Swing Doors/Gates/Trailer Ramps - Corrosion Resistant Weldable Hinges

• [Durable Carbon Steel Construction]: Crafted from high-quality carbon steel with corrosion-resistant brass components, these weld-on door hinges provide exceptional strength and longevity. Ideal for both lightweight and heavy-duty applications like metal swing doors or trailer ramps.
• [360° Smooth Rotation with Low-Friction Performance]: Featuring brass-lined hinges for ultra-smooth, silent operation and minimal wear, our weld-on hinges rotate effortlessly in all directions—perfect for gates, driveway barriers, or industrial swing doors.
• [Easy Weld-On Installation & Universal Fitment]: With a drop-design hinge body and pre-drilled fixing plate, installation is streamlined—simply weld onto door frames for a sturdy, professional finish. Compatible with metal, wood, or composite door materials.
• [Versatile Outdoor/Commercial Use]: The 12-piece set includes heavy-duty weldable hinges, suitable for rugged outdoor environments (e.g., metal gates, trailer ramps) or commercial door systems requiring robust durability and 360° rotational flexibility.
• [Silent Operation & Corrosion Resistance]: Engineered with brass components and rust-inhibiting construction, these weld-on door hinges ensure quiet, long-lasting performance even in harsh weather or high-traffic areas.

Product Overview: Engineered for robust performance, these 4-inch weldable hinges combine carbon steel and brass components for durability. Ideal for doors, gates, or trailers, they offer 360° smooth rotation and corrosion resistance. Key Specifications: Material: Carbon steel with brass parts Dimensions: 4" (length) × 9/16" (barrel diameter) Rotation: 360° friction-free movement Advanced Features: >Unmatched Durability: Built to handle both lightweight and heavy-duty doors, these hinges provide stable performance even under constant use. >Universal Versatility: Designed for metal swing doors, gates, trailer ramps, and driveway gates. Suitable for horizontal/vertical applications. >Effortless Installation: Weld-on design with a -friendly plate system saves time and guarantees a secure fit. >Silent & Smooth Rotation: Brass parts and low-friction bearings ensure quiet operation and long-term reliability. >Cost-Effective Solution: Each package includes 14PCS heavy-duty weldable hinges (standard), offering value for large-scale projects. Usage Recommendations: Applications: Residential/commercial gates, industrial doors, or trailer ramps. Installation Tip: Pre-weld onto frames for secure, long-lasting hinges. Maintenance: Ideal for outdoor use; no frequent lubrication needed. Package Includes: 12 x Hinges