The Steel Base Flange for Square Tubing is a heavy-duty mounting component engineered to securely anchor 50.8mm x 50.8mm square tubes to flat surfaces such as floors, decks, or walls. This 100 x 100 mm base plate is manufactured from high-grade AISI 304 or AISI 316 stainless steel, offering superior durability and corrosion resistance for both residential and commercial railing systems. A defining feature of this heavy-duty cast version is the inclusion of four triangular reinforcement ribs extending from the center socket to the corners, which significantly enhances lateral stability for structural columns or railing posts. Designed with an 18 mm base thickness and 11 mm mounting holes for M10 bolts, the flange provides a solid foundation where the tube can be secured via internal welding or a slotted set screw featuring a flat end for a secure, one word (integrated) fit.
|
Category |
Part NO. |
Fit for Tube
(mm) |
A (mm) |
B (mm) |
□ (mm) |
Material |
Surface |
Place of Production |
|
Square Line |
ST1850 |
50.8 x 50.8
|
100 | 18 | 50.8 |
Stainless Steel 304 / 316 |
Satin or Mirror polished |
Shandong, China |
1. Manufacturing Process: Investment Casting + Precision Machining+Polishing
2. Application Scenario: Hotel, Villa, Apartment, Office Building, Hospital, School, Mall, Sports Venues, Leisure Facilities, Supermarket, Park, Bathroom, Outdoor, Exterior, Entry, Hall, Staircase, Gym
3. Use Place: Bridge Railings / Handrails, Deck Railings / Handrails, Porch Railings / Handrails, Stair Railings / Handrails
4. Installation Location: Flooring / Wall
5. Design Style: Contemporary, Modern, European, Craftsman
6. Certificate: ISO9001:2015
7. Engineering Solution Capability: Graphic Design, 3d Model Design, Total Solution For Projects
8. Certificates: Material Certificates, Dimension Inspection Certificate
9. Lead Time : 60days batch production after base flange samples approved
10. Warranty Service: 1 Year
11. After-sales Service: Online Technical Support, Return And Replacement
Q1: What tube size is this flange compatible with?
A: The center opening is specifically sized at 50.8mm x 50.8mm to accommodate standard square tubing of the same dimensions for a precise "slip-on" fit.
Q2: What are the benefits of the reinforcement ribs?
A: The four triangular ribs extend from the center socket to the base plate corners to increase the lateral stability of the post, making it ideal for high-traffic guardrails and staircases.
Q3: Can I install this without professional welding?
Yes. While the tube can be welded at the top or bottom of the socket, it can also be fastened securely using a set screw to keep the vertical or horizontal tube firmly in place.
Q4: Is this product suitable for outdoor use?
A: Yes. It is typically produced from AISI 304 or AISI 316 stainless steel, which provides the necessary resistance to weathering and chemicals for outdoor applications.
Q5: What mounting hardware should be used for the base?
A: The base plate features four 11 mm diameter mounting holes intended for use with heavy-duty anchors or M10 bolts to ensure the flange remains anchored to the mounting surface.
Q6: What is the thickness of the heavy-duty version?
A: This specific cast version features a base thickness of approximately 18 mm to support structural frameworks and safety-critical railing systems.
