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Stainless Steel Square Flange
Stainless Steel Square Flange Structure

Square Tube Corner Flange

The Stainless Steel Square Flange is a high-strength structural component engineered to secure 50.8mm x 50.8mm square tubing to floors, walls, or corner structures with maximum stability. This precision-cast base flange features a raised central square socket designed to receive the tubing profile, integrated into a flat mounting plate with four pre-drilled corner holes for secure bolting to concrete, wood, or steel surfaces. Manufactured from premium-grade stainless steel, this square handrail fitting provides the exceptional durability and corrosion resistance necessary for both high-traffic commercial environments and modern residential balustrades. Its robust design ensures that handrail frameworks remain rigid and secure while providing a clean, professional architectural finish to any installation.

Category

Part NO.
Fit for Tube

(mm)

A

(mm)

(mm)

Material

Surface

Place of Production

Square Line

ST0850
50.8 x 50.8
97 50.8

Stainless Steel 304 / 316

Satin or Mirror polished

Shandong, China

 

Base Flange Basic Info:

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
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 square tube flange samples approved
10. Warranty Service: 1 Year
11. After-sales Service: Online Technical Support, Return And Replacement

 

FAQ:

Q1. What tube dimensions are compatible with this Stainless Steel Square Flange?
A: This flange is specifically designed to accommodate standard 50.8mm x 50.8mm square stainless steel tubing. The raised central socket is equilateral to ensure a perfectly flush fit for the tube profile.

Q2. What does the "Dimension A=97mm" specification refer to?
A: Dimension A represents the outer width of the square socket base. This measurement is critical for calculating clearance and ensuring the flange fits the intended mounting area or matches existing architectural hardware.

Q3. Is this base flange suitable for outdoor or coastal installations?
A: Yes, provided the appropriate material grade is selected. While AISI 304 is excellent for interior applications, AISI 316 or Duplex grades are mandatory for outdoor, poolside, or coastal environments to prevent surface pitting and ensure long-term resistance to salt and moisture.

Q4. How is the flange secured to the mounting surface?
A: The mounting base features four pre-drilled holes located at each corner. This allows the unit to be bolted down securely using high-strength fasteners suitable for your specific substrate, such as anchor bolts for concrete or heavy-duty screws for timber.

Q5. Does the tube require welding to the flange?
A: While the socket provides a secure mechanical fit, it is typically recommended to bond the tube into the socket using high-strength structural adhesives or mechanical fasteners. This maintains a weld-free, clean aesthetic while providing the structural integrity required for safety compliance.

Q6. Can this flange be used for both floor and wall applications?
A: Absolutely. Its versatile design allows it to function as a floor-mounted base for vertical posts or as a corner/wall flange to provide lateral support for horizontal handrail sections or framework terminations.

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