EN
RUEach railing base flange is measured with precision instruments to confirm socket diameters, base dimensions, and hole spacing, ensuring easy installation and compatibility with standard railing pipes.
1. Higher Standard Certification
2. Perfect Production Solution
3. More Corrosion Resistant
4. Comprehensive After Service
5. Wide-ranging Application
HULK Metal manufactures high-standard railing base flange structural pipe fittings with ISO 9001 certification. Our fittings feature precise dimensions, reliable strength, and multiple surface treatments, ensuring durability and excellent performance in both indoor and outdoor applications for handrail and guardrail systems.
The parameters of Railing Base Flange Structural Pipe Fittings include detailed size options, different pipe compatibility, and surface treatment codes. Buyers can choose from hot-dip galvanized, double galvanized, powder coating, or raw black finishes to match project needs. Each size provides accurate dimensions to ensure easy installation and secure support. These fittings are designed for reliable use in railing uprights, safety barriers, and various structural frameworks, meeting diverse customer requirements.
| Pipe Info | |||
 | |||
| Material | Carbon Steel | ||
| Surface | Hot Galvanized / Powder Coating | ||
| Color | Refer To Pantone Color Card | ||
| Pipe Sizes Comparison | |||
| Size | Inner Diameter | Outer Diameter | |
| Nominal (DN) | in | mm | |
| T | 15 | 1/2" | 21.3 |
| A | 20 | 3/4" | 26.9 |
| B | 25 | 1" | 33.7 |
| C | 32 | 5/4" | 42.4 |
| D | 40 | 3/2" | 48.3 |
| E | 50 | 2" | 60.3 |
| Color only refers to the color of the powder coating. The powder coating of the pipe will allow for color tolerance, Kindly contact us for details. The quality of the tube will meet the usage requirements in most scenarios. For special scenarios, Kindly contact us for performance testing. | |||
| Basic Info Table of Fittings | |||||||||||
 |  | ||||||||||
| Name | 132 | ||||||||||
| Material | Malleable Iron / Ductile Iron | ||||||||||
| Surface | Hot-dip Galvanized / Double Galvanized / Powder Coating / Raw Black | ||||||||||
| Color | Refer To Pantone Color Card | ||||||||||
| Pipe Sizes Comparison | Surface Finishing & Code | Dimensions(mm) | |||||||||
| Size | DN | in | mm | Hot-dip Galvanized | Double Galvanized | Powder Coating | Raw Black | a | b | C | D |
| A | 20 | 3/4" | 26.9 | HM-G-132-A | HM-D-132-A | HM-PC-132-A | HM-B-132-A | 105 | 60 | 52 | 76 |
| B | 25 | 1" | 33.7 | HM-G-132-B | HM-D-132-B | HM-PC-132-B | HM-B-132-B | 127 | 71 | 62 | 89 |
| C | 32 | 5/4" | 42.4 | HM-G-132-C | HM-D-132-C | HM-PC-132-C | HM-B-132-C | 139 | 84 | 72 | 101 |
| D | 40 | 3/2" | 48.3 | HM-G-132-D | HM-D-132-D | HM-PC-132-D | HM-B-132-D | 152 | 89 | 86 | 114 |
| E | 50 | 2" | 60.3 | HM-G-132-E | HM-D-132-E | HM-PC-132-E | HM-B-132-E | 165 | 104 | 96 | 127 |
The Railing Base Flange Structural Pipe Fitting is an essential component in railing and guardrail systems, used to fix uprights securely to the ground or other surfaces. Its stronger base design, longer sockets, and double hex bolts provide better stability and resistance against horizontal impact loads. With multiple materials and surface treatments available, it is suitable for both indoor and outdoor projects, offering excellent versatility and durability in different structural applications.
A Railing Base Flange Structural Pipe Fitting is a specialized connector designed to support uprights in railing, guardrail, and barrier systems. It serves as a secure foundation that transfers the load from the railing system to the ground, ensuring overall stability and safety.
Compared with the 131 Base Flange, this type features longer sockets and two hex bolts on the top, which lock the pipe firmly into place and reduce the risk of loosening. Its extended base with mounting holes on both sides aligns with the force direction, making it capable of handling stronger horizontal impact loads. This structural improvement offers better reliability in safety-critical installations.
The larger, elongated base also provides more surface contact for fastening, which enhances strength and allows it to withstand daily use in demanding environments. Due to these advantages, the railing base flange is a preferred choice for both commercial and residential projects requiring a durable foundation for handrails and guardrails.
It is widely applied in stair railings, balcony guardrails, playground supports, and even DIY furniture or structural projects. By choosing high-quality fittings, users can ensure long-lasting performance, ease of installation, and compliance with international safety standards.
Railing Base Flange Structural Pipe Fittings can be produced in different materials, each providing unique advantages for specific applications.
Cast iron railing base flanges are produced using sand casting. They are strong, cost-effective, and widely available. This option is ideal for projects requiring high durability and stability, especially in heavy-duty railing and guardrail installations.
Stainless steel railing base flanges are manufactured through investment casting. They feature superior corrosion resistance, making them well-suited for outdoor and marine environments where moisture and harsh conditions require long-lasting structural reliability.
Aluminum railing base flanges are produced by die casting. They are lightweight yet durable, suitable for applications where reducing overall system weight is important, such as portable structures, DIY furniture, and lightweight railing projects.
Various surface treatments are available to enhance durability, corrosion resistance, and adaptability for different installation environments.
Hot-dip galvanizing forms a strong zinc coating over the base flange, offering reliable corrosion resistance in outdoor environments. It is especially suitable for railing systems exposed to rain, moisture, or industrial areas. The thick protective layer ensures long service life and minimizes maintenance requirements, making it a cost-effective solution for long-term projects.
Double galvanizing combines hot-dip zinc coating with an additional layer, providing enhanced protection and uniform coverage. This treatment significantly increases corrosion resistance compared with single coating, making it ideal for coastal, industrial, and high-humidity environments. It extends the service life of the fitting, ensuring durability and performance even under harsh operating conditions.
Powder coating provides a decorative and protective finish available in multiple colors according to Pantone standards. It offers uniform coverage, better wear resistance, and improved aesthetics. This treatment is ideal for indoor projects or decorative outdoor structures where both appearance and durability are important. It also allows customization for architectural or DIY design preferences.
Ensure the pipe's outer diameter matches the socket's inner diameter.
Confirm that the surface treatment meets environmental and usage requirements.
Check whether the product complies with local railing installation standards.
Floor support points in indoor and outdoor playgrounds.
Upright connection points for handrail and guardrail systems.
Base supports for DIY structures.
Legs for DIY tables, chairs, and furniture projects.
A: Our quality assurance system includes a fully equipped inspection center, dimensional checks, tensile strength testing, and pre-shipment inspection and so on. Every fitting is verified to ensure it meets ISO standards and provides reliable performance in different applications.
A: We offer competitive pricing without compromising quality. Larger orders help reduce production costs, allowing you to get better discounts. Contact us with your requirements, and our team will provide the most cost-effective solution for your project.
A: The minimum order quantity depends on the product model and surface treatment. For standard cast iron railing base flanges, we can offer flexible MOQs. Contact us directly to receive an accurate quotation tailored to your project.
A: Delivery time depends on order size and customization. Normally, it takes around 30 days, but larger orders can improve efficiency. We ensure timely production and shipping, and in most cases, the cycle does not exceed 45 days.
A: We provide hot-dip galvanizing, double galvanizing, and powder coating in custom colors. Each treatment enhances durability and corrosion resistance. Powder coating requires a minimum order quantity for customized colors. Standard finishes are available with flexible purchase options.
A: We export to over 50 countries worldwide, including Europe, North America, South America, Africa, and Southeast Asia. Our logistics team works with trusted freight partners to ensure safe, timely, and cost-efficient delivery to your designated port.
A: We mainly produce cast iron structural pipe fittings with complete mold sets. Stainless steel and aluminum fittings are available for OEM orders, requiring mold development. Our engineers can work with your drawings or samples to provide customized solutions.
A: We offer multiple sizes ranging from DN20 to DN50, with corresponding socket dimensions and codes for each surface treatment. All sizes are designed for compatibility with standard pipe diameters, ensuring easy installation and secure upright support.
A: Focus on the supplier's certification, production capacity, and quality control system. A reliable supplier like HULK Metal provides ISO-certified production, strict inspection, and comprehensive after-sales service to ensure consistent quality and long-term cooperation.
A: We support T/T, L/C, and other international trade terms. Delivery terms include FOB, CIF, and EXW, depending on your needs. Our finance and logistics teams work together to provide smooth, secure, and transparent transaction processes.
HULK Metal ensures every Railing Base Flange Structural Pipe Fitting meets higher standards through a strict quality control system. From raw material inspection to final packaging, our QC team conducts multiple tests using advanced equipment. Each fitting undergoes dimensional checks, usage simulation, and strength verification to guarantee reliable performance. Our pre-shipment inspection process ensures buyers receive defect-free products, making our fittings more consistent, durable, and trustworthy for railing and guardrail projects.
Each railing base flange is measured with precision instruments to confirm socket diameters, base dimensions, and hole spacing, ensuring easy installation and compatibility with standard railing pipes.
Before delivery, our QC team conducts a full inspection of appearance, surface treatment, and assembly performance to ensure every fitting meets your order requirements.
We double-check order quantities, packaging, and labeling to ensure accuracy. Each shipment is verified against purchase requirements, preventing shortages and delays in your railing projects.
Samples are tested under real usage conditions to simulate stress, load, and impact, ensuring the fittings provide strong support and long-term durability in railing and guardrail systems.
HULK Metal's strong factory network ensures you receive reliable Railing Base Flange Structural Pipe Fittings with stable quality and faster delivery. From casting to surface treatment, each process is carefully monitored. Our QC center is equipped with advanced testing machines to guarantee precision. With experienced teams and strict ISO 9001 management standards, we deliver higher-standard fittings that meet global project requirements and provide bulk buyers with long-term cooperation advantages.
Choosing HULK Metal means working with an ISO 9001 certified manufacturer that delivers higher-standard railing base flange structural pipe fittings. Our experienced production team, advanced casting factories, and strict quality inspection center guarantee consistent quality. With comprehensive surface treatments, stronger corrosion resistance, and faster delivery, we provide bulk buyers with reliable solutions. Combined with complete after-sales support and professional engineering assistance, HULK Metal ensures your projects are completed smoothly, efficiently, and with lower overall costs.
To help buyers better understand railing base flanges and other structural pipe fittings, HULK Metal regularly shares professional articles and case studies. These resources cover product applications, surface treatment comparisons, project installation tips, and industry insights. By browsing related content, you can gain useful knowledge on selecting the right fittings, improving durability, and optimizing cost efficiency for your railing systems. Our articles provide practical guidance to support bulk purchasing decisions and long-term cooperation with reliable suppliers.
In addition to railing base flanges, HULK Metal supplies a wide range of structural pipe fittings to meet different project needs. Our catalog includes handrail brackets, elbow fittings, tee fittings, cross fittings, wall flanges, and key clamp connectors. All fittings are available in various materials and finishes, offering excellent compatibility with railing and guardrail systems. With flexible customization, strict quality control, and faster delivery, we ensure buyers can source all essential fittings from one trusted manufacturer.
Our handrail bracket structural pipe fittings have multi-type surface treatments to prevent corrosion, precise dimensions, and a strong load-bearing capacity. They provide a longer service life and a more secure installation, making them perfect for outdoor safety rails, balconies, and staircases.
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
33.7
42.4
48.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
0~11
TUBE SIZE(mm)
33.7
42.4
48.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
0~11
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
21.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
Customizable
HULK Metal supplies base flange structural pipe fittings made of durable materials with multiple surface finishes. They are designed for stronger pipe connections and longer service life. Our modern factory, professional team, and strict inspection ensure higher-standard products for your projects.
HULK Metal manufactures high-standard railing base flange structural pipe fittings with ISO 9001 certification. Our fittings feature precise dimensions, reliable strength, and multiple surface treatments, ensuring durability and excellent performance in both indoor and outdoor applications for handrail and guardrail systems.
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
33.7/26.9
Customizable
The Swivel Base Flange is engineered to secure pipes to walls with adjustable angles from 0° to 180°. Its modular design ensures easy assembly, reliable stability, and compatibility with multiple pipe sizes and materials.
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
33.7
42.4
48.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
48.3/42.4
60.3
21.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
21.3
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
21.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
21.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
42.4/48.3
48.3
60.3
21.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
21.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
33.7
42.4
48.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
42.4/33.7
42.4/48.3
48.3/42.4
603/48.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
21.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
33.7
42.4
48.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
48.3
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
33.7
42.4
48.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
30~60
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
33.7
42.4
48.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
15~70
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
0~45
TUBE SIZE(mm)
33.7
42.4
48.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
33.7
42.4
48.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
33.7
42.4
48.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
Customizable
Hook structural pipe fittings provide temporary mounting points on pipes. Designed for horizontal and vertical installation, they ensure user safety with rounded heads and secure locking via hex bolts. This solution is suitable only for incomplete systems.
The slope railing base flange pipe fitting is designed to secure inclined uprights to the ground with adjustable angles. Manufactured with strict quality control, it offers multiple surface treatments, ensuring strength, corrosion resistance, and suitability for diverse railing and structural applications.
Our gate hinge pipe fittings combine robust materials with precision casting to create dependable connections for gates. With multiple surface treatments and sizes available, they meet diverse installation requirements, deliver excellent corrosion resistance, and provide a secure, smooth rotational function.
Gate Eye Pipe Fittings provide a reliable hinge connection for gates and handrail systems. Made from strong cast iron or flexible ductile iron, they come with different surface finishes, providing great performance, a longer lifespan, and making them suitable for many construction and industrial uses.
The 119A Galvanized Railing Connectors Add-on Two Socket Cross is different from the 119 type in that it can add two pipes to an already completed system.
119 Galvanized Safety Railing Fittings Two Socket Cross is used to add two pipes on the same plane to form a cross structure for a specific position of a pipe.
116A Galvanized Pipe Guardrail Fittings Add On Side-outlet Tee is used to add two perpendicular rails to an already assembled handrail or guardrail uprights, or to add two perpendicular pipes to an assembled DIY structure such as a cube or cuboid.
101 Reducing Short Tee Galvanized Pipe Railing Fittings are often used. HULK Metal is a well-known supplier in China. We look forward to your inquiry.
No. 101 galvanized pipe handrail fittings are used to connect two pipes into a "T" shape. It is also called Short Tee. One pipe is inserted into the socket and the other one passes through the channel above.
104 galvanized slip-on pipe fittings long tee can be used to add two horizontal pipes to the guardrail or handrail uprights, or to connect two pipes in a DIY structure and add a vertical pipe to them.
104 galvanized slip-on pipe fittings long tee can be used to add two horizontal pipes to the guardrail or handrail uprights, or to connect two pipes in a DIY structure and add a vertical pipe to them.
Safety rail fittings are slip-on pipe fittings for safety railings. They can be quickly installed to complete a system, are easy to operate, and have a longer life and better performance. The 125R reducing 90-degree elbow is a special and uncommon fitting used to connect two pipes of different thicknesses.
We can provide 21.3 mm to 60.3 mm size, that is, 1/2" to 2". We have a full range of molds, can complete each order faster.
124 type Galvanized Key Clamp Fitting uses 3 types of hot-dip galvanizing, double coating, and powder coating. We can provide 33.7mm, 42.4mm and 48.3mm diameters. We integrate a complete supply chain and a professional team to provide better products and services. Looking forward to your inquiry.
123 Type Galvanized Railing Fittings is a kind of elbow that can connect two pipes with an angle of 40° to 70°. We can provide two calibers: 42.4mm and 48.3mm. We will strictly implement ISO9001 to manage the supply chain and provide better products and services.
We integrated a complete supply chain, passed ISO 9001 certification, formed a professional technical team and produced a full range models of the galvanized pipe connector fittings to provide the best services and products. Looking forward your inquiry.
As a top metalworking service provider, we want to let every customer experience a sense of security in purchasing, sales, etc., and better realize their value through continuously defining new standards for products and services.
Room 901, Intelligent Park A Building, No. 86 ChunYang Rd, Qingdao, China 266109
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