EN
RUBefore delivery, all products undergo a final inspection for surface finish, corrosion resistance, and assembly accuracy, guaranteeing that buyers receive fully compliant and high-quality fittings.
1. Higher Standard Certification
2. Perfect Production Solution
3. More Corrosion Resistant
4. Comprehensive After Service
5. Wide-ranging Application
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.
Our Swivel Base Flange structural pipe fittings are available in a range of sizes and materials to meet diverse project requirements. Choose from malleable iron, ductile iron, or customizable materials, with surface treatments like galvanizing, powder coating, or custom finishes. Standard tube sizes include 26.9mm, 33.7mm, 42.4mm, 48.3mm, and 60.3mm, while bespoke options are available. Each fitting is precision-engineered to ensure secure, long-lasting connections in industrial, commercial, and DIY applications.
| 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 | 169 Swivel Base Flange | ||||||||||
| 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-169-A | HM-D-169-A | HM-PC-169-A | HM-B-169-A | 32 | 58.5 | ||
| B | 25 | 1" | 33.7 | HM-G-169-B | HM-D-169-B | HM-PC-169-B | HM-B-169-B | 32 | 61 | ||
| C | 32 | 5/4" | 42.4 | HM-G-169-C | HM-D-169-C | HM-PC-169-C | HM-B-169-C | 32 | 69 | ||
| D | 40 | 3/2" | 48.3 | HM-G-169-D | HM-D-169-D | HM-PC-169-D | HM-B-169-D | 32 | 77 | ||
| E | 50 | 2" | 60.3 | HM-G-169-E | HM-D-169-E | HM-PC-169-E | HM-B-169-E | 32 | 95 | ||
Our Swivel Base Flange structural pipe fittings are designed for flexible and reliable pipe-to-wall connections. Constructed with high-quality materials and precision engineering, they allow angle adjustments from 0° to 180°. Available in cast iron, stainless steel, and aluminum, these fittings offer multiple surface treatments including galvanizing and powder coating. Ideal for handrails, guardrails, fences, and DIY structures, HULK Metal ensures superior durability, fast delivery, and comprehensive technical support for bulk buyers worldwide.
The Swivel Base Flange is a versatile structural pipe fitting used to secure pipes to walls or vertical surfaces while allowing adjustable angles between 0° and 180°. This feature makes it ideal for installations that require custom orientations or non-standard layouts.
Structurally, it consists of two main components: 169M and 173F, which can be assembled by riveting or bolting. This modular design ensures easy installation, strong support, and adaptability across different pipe systems.
Swivel Base Flanges are commonly used in handrails, guardrails, fencing, and DIY structural projects. They are designed to provide secure connections without the need for welding, simplifying construction while maintaining safety and durability. Multiple surface treatments, including hot-dip galvanizing, double-coating galvanizing, and powder coating, ensure long-lasting performance in both indoor and outdoor environments.
HULK Metal manufactures these fittings with precision engineering, adhering to ISO 9001 standards, ensuring consistent quality, and meeting the requirements of bulk buyers. With a range of material options, sizes, and finishes, our Swivel Base Flange fittings provide an optimal balance of strength, corrosion resistance, and aesthetic appeal.
Cast iron, stainless steel, and aluminum options provide strength, durability, and versatility for a wide range of applications.
Our cast iron Swivel Base Flanges are produced using sand casting techniques, ensuring high strength, durability, and precise dimensions suitable for industrial and commercial structural applications. Ideal for heavy-duty projects requiring reliable long-term performance.
Stainless steel Swivel Base Flanges are manufactured using investment casting, offering excellent corrosion resistance, high strength, and a polished finish. These fittings are perfect for environments requiring hygiene, aesthetics, and long-lasting durability.
Aluminum Swivel Base Flanges are produced through die casting, providing lightweight yet strong fittings. They are ideal for applications where weight reduction is essential without compromising structural integrity.
Multiple surface treatments protect against corrosion and wear, ensuring long-lasting performance in various indoor and outdoor environments.
Hot-dip galvanizing applies a thick zinc coating to prevent corrosion, ideal for outdoor environments and harsh weather conditions. It ensures long-term durability, low maintenance, and a professional finish for industrial, commercial, or residential installations.
Double-coating galvanizing combines hot-dip and electro-galvanizing for superior corrosion resistance, providing extra protection in high-moisture or industrial environments. This treatment enhances the lifespan of the Swivel Base Flange while maintaining strong adhesion and a uniform appearance.
Powder coating provides a decorative and protective finish, available in a variety of colors. It protects against corrosion, scratches, and wear while offering aesthetic flexibility for indoor and outdoor applications. Custom colors and textures are available for bulk orders.
Ensure the pipe outer diameter matches the Swivel Base Flange inner diameter.
This fitting cannot withstand lateral loads.
Do not use this fitting as a base support for guardrails.Kinldy Check Railing Base Flange and Slope Raling Base Flange.
Handrails
Guardrails
Fences
DIY structures
A: We have a fully equipped quality inspection center, strict testing procedures, and a complete quality assurance system to ensure every Swivel Base Flange meets high standards for performance and durability.
A: Our prices are based on high-quality standards. With the same quality, we offer competitive rates. Larger orders can receive additional discounts, providing excellent value for bulk buyers.
A: The minimum order quantity depends on the product model. Please contact us for a personalized quote, and we can accommodate both small and bulk orders according to your needs.
A: Delivery usually takes around 30 days, depending on order size. Larger orders increase production efficiency. In most cases, shipments will not exceed 45 days, ensuring timely supply for bulk projects.
A: Hot-dip galvanizing, double-coating galvanizing, and customized powder coating colors are available. Some custom finishes may have a minimum order quantity.
A: We serve clients in over 50 countries, including Europe, North America, South America, Africa, and Southeast Asia. HULK Metal has extensive experience in international shipping and logistics.
A: We produce Swivel Base Flanges in cast iron, stainless steel, and aluminum. Full mold sets are available for cast iron; other materials require custom molds and OEM arrangements.
A: Standard tube sizes include 26.9mm, 33.7mm, 42.4mm, 48.3mm, and 60.3mm. Custom sizes are also available upon request for specialized projects.
A: Ensure the supplier offers certified products, reliable production capacity, technical support, competitive pricing, fast delivery, and quality assurance to guarantee safety, durability, and compliance with your project requirements.
A: We support multiple payment methods, including T/T, L/C, and PayPal. Delivery terms are flexible, generally FOB, CIF, or EXW. Terms can be tailored based on order volume and buyer location.
HULK Metal ensures every Swivel Base Flange structural pipe fitting meets strict quality standards. From dimensional accuracy to performance testing, each product undergoes rigorous inspection. Our quality control processes include pre-shipment checks, usage inspections, and quantity verification to guarantee consistency and reliability. With ISO 9001 certification and a dedicated QC team, we provide bulk buyers with fittings that combine durability, precision, and long-term performance, ensuring peace of mind for every project.
Before delivery, all products undergo a final inspection for surface finish, corrosion resistance, and assembly accuracy, guaranteeing that buyers receive fully compliant and high-quality fittings.
Each fitting is measured for precise dimensions to ensure proper pipe fit, structural integrity, and compatibility with other components in industrial, commercial, and DIY installations.
Fittings are tested under simulated operational conditions to confirm angle adjustment functionality, load stability, and long-term reliability, ensuring they perform as expected in real-world applications.
All orders are checked to confirm correct quantities, ensuring bulk buyers receive the exact number of fittings requested, with no errors or shortages.
HULK Metal's factory combines advanced casting techniques, precision machining, and high-quality surface treatments to produce durable Swivel Base Flange fittings. Our dedicated QC center ensures every piece meets ISO 9001 standards. With experienced staff, fast production lines, and a focus on bulk supply, we offer competitive prices and customized solutions. From casting to coating, HULK Metal delivers reliable structural pipe fittings tailored to diverse industrial, commercial, and DIY applications.
HULK Metal stands out as a top manufacturer of Swivel Base Flange fittings with ISO 9001 certification, competitive pricing, and bulk supply capability. We offer customizable sizes, materials, and finishes, backed by comprehensive technical support. Our fast production and shipping ensure reliable delivery, while strict quality control guarantees durable, long-lasting products. Customers choose HULK Metal for professional service, superior product performance, and peace of mind in every bulk order.
Explore informative articles and resources related to Swivel Base Flange structural pipe fittings. Each article features product images, detailed descriptions, and installation guidance to help bulk buyers make informed decisions. Learn about different surface treatments, material options, sizing solutions, and best practices for structural and DIY projects. HULK Metal provides practical insights, technical support, and real-world applications to help customers optimize their projects and understand the advantages of high-quality swivel base flange fittings.
HULK Metal also supplies a wide range of structural pipe fittings, including slope railing flanges, elbow fittings, tee connectors, and guardrail bases. These products complement our Swivel Base Flanges and allow customers to create fully customized pipe systems. All fittings are manufactured with precision, durable materials, and optional surface treatments. Whether for industrial, commercial, or DIY projects, our comprehensive product line ensures compatibility, reliability, and aesthetic consistency across all structural pipe applications.
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
The Vertical Railing Side Support Structural Pipe Fitting is designed to provide strong and stable support for railing systems. Manufactured with malleable iron or ductile iron, and available in multiple surface treatments such as hot-dip galvanizing or powder coating, these fittings ensure long-term durability.
The Cradle Clamp Structural Pipe Fitting is designed to fasten pipe rails securely to uprights. Its open clamp structure allows quick installation, while inner hex bolts ensure reliable stability.
Horizontal Railing Side Support Structural Pipe Fittings are designed to fasten railing uprights firmly against walls or side structures.
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
The Double Lugged Bracket Structural Pipe Fitting is engineered to mount pipes flush against flat walls or panels. Featuring two lugs with fixing holes, it supports various screw or chemical fixing methods. Its socket with hex bolts firmly secures the pipe in place.
The Double Male Swivel Structural Pipe Fitting is designed for flexible joint connections and works seamlessly with single swivel female parts to form a stable structure.
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
© 2025 HULK Metal All Rights Reserved. All Rights Reserved.
