3X3/4 Barrel Hinges
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- Buy 50 or more $2.29 Save 23%
- Buy 100 or more $2.09 Save 30%
3X3/4 Barrel Hinges
Engineered for heavy-duty applications, our 3x3/4 barrel hinges provide a durable and reliable pivot point for gates, doors, and industrial equipment. These weld-on hinges are constructed from high-strength steel, ensuring smooth operation and long-lasting performance in demanding fabrication and MRO environments.
- Heavy-Duty Weld-On Design
- 3" Length x 3/4" Barrel Diameter
- Unfinished Weldable Steel
- Application: Gates, Doors & Fabrication
Bobco's 3x3/4 barrel hinges are precision-machined from solid, low-carbon weldable steel, designed for maximum strength and durability. The two-part design features a pin and barrel assembly that provides a smooth, frictionless pivot for heavy loads. Supplied in an unfinished, raw steel state, these hinges are ready for direct welding to steel frames, posts, and doors without requiring special surface preparation. This robust construction makes them a superior choice for custom fabrication projects where strength and reliability are critical for operational safety and longevity.
These industrial-grade barrel hinges are the go-to hardware for professional fabricators and MRO teams. Their primary use is in constructing heavy swinging gates, security doors, trailer ramps, and access panels on industrial machinery. The weld-on installation creates a permanent, tamper-resistant connection that is significantly stronger than bolt-on alternatives. Available for same-day pickup at our Los Angeles warehouse, these hinges are essential components for fencing contractors, ornamental ironworkers, and equipment manufacturers.
Specifications
- Material: Weldable Low-Carbon Steel
- Standards: Industrial / Fabrication Grade
- Strength/Tensile: Designed for High-Load Capacity (Varies by weld quality)
- Dimensions: 3" Length x 3/4" Barrel Diameter
- Finish: Raw / Unfinished Steel
- Certifications: Material certs available on request
Applications
- Fabrication & Welding: Creating custom heavy-duty gates, security doors, and trailer ramps.
- Ornamental Ironwork: Used in decorative and security fencing, and custom architectural metalwork.
- Industrial MRO: Repairing or replacing worn hinges on heavy equipment, access panels, and industrial containers.
- Construction: Installing steel access doors, utility gates, and heavy-duty enclosures.
Target Users
Ideal for professional welders, metal fabricators, fence and gate installers, and maintenance technicians requiring robust, weldable hardware for high-stress pivot applications.
Finish Options
Our 3x3/4 barrel hinges are supplied in a raw, unfinished steel condition, making them ideal for welding. After installation, they can be finished to match your project requirements using industrial paints, primers, or powder coating for excellent corrosion resistance.
How to Measure
To ensure you order the correct hinge, measure the required length and barrel diameter. Consider the weight of the gate or door to determine the number of hinges needed for proper support. The 3x3/4 designation refers to a 3-inch overall length and a 3/4-inch barrel diameter.
Example: Order as '3x3/4 Barrel Hinge' for a standard 3-inch length component.
Order Checklist
- Product name and required dimensions (e.g., 3x3/4)
- Grade/material specification and quantity
- Welding compatibility verification
- Surface finish requirements (post-installation)
- Certifications required (Mill Test Report - MTR)
- Special handling or delivery requirements
Quick Facts
- Product
- 3X3/4 Barrel Hinges
- Material
- Weldable Steel
- Standards
- Industrial Fabrication Grade
- Key Properties
- Heavy-duty, weld-on design for high-load capacity. Raw steel finish ready for custom paint.
- Primary Applications
- Heavy Gates, Security Doors, Trailers, Custom Fabrication
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock 3x3/4 barrel hinges for immediate pickup at our Los Angeles location. Other sizes may be available upon request to accommodate various project scales.
Custom sizes and cutting services are available.
Contact for Sizing