The Straight Tube Connector is a stainless steel inline fitting designed to join two square tubes end-to-end, creating a continuous, extended section of railing without welding. Engineered specifically for 40 × 40 mm square tubing, this square tube connector provides a clean, seamless connection that maintains the strength and visual consistency of modern railing systems. Manufactured from high-quality AISI 304 or AISI 316 stainless steel, it offers excellent corrosion resistance, durability, and long-term performance for both indoor and outdoor applications. With satin/brushed or mirror/polished finishes available, this straight tube connector integrates smoothly into balcony, stair, and handrail systems while preserving a sleek architectural appearance.
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Category |
Part NO. |
□ |
H |
Material |
Surface |
Place of Production |
|
Square Tube Fittings |
S004.40.20 |
40x40mm |
4mm |
AISI 304,316 or Duplex SS 2205 |
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. Design Style: Contemporary, Modern, European, Craftsman
5. Certificate: ISO9001:2015
6. Engineering Solution Capability: Graphic Design, 3d Model Design, Total Solution For Projects
7. Certificates: Material Certificates, Dimension Inspection Certificate
8. Lead Time : 60days batch production after tube connector samples approved
9. Warranty Service: 1 Year
10. After-sales Service: Online Technical Support, Return And Replacement
Q1: What is the primary purpose of the straight tube connector?
A: It is used to join two pieces of square stainless steel tubing end-to-end, allowing you to extend the length of a railing section in a straight line without welding.
Q2: Which tube size does this connector fit?
A: This connector is designed for 40 × 40 mm square tubes, commonly used in stainless steel railing systems.
Q3: How do I install this square tube connector?
A: Installation is simple: the connector is inserted into the ends of the two tubes being joined. We recommend using a high-strength industrial stainless steel adhesive to secure the fitting internally for a permanent, vibration-resistant bond.
Q4: Can this be used for outdoor balcony railings?
A: Yes. For outdoor applications, we recommend selecting the Grade 316 stainless steel version with a polished finish to ensure maximum resistance against rain, humidity, and salt air.
Q5: Does the connector leave a visible gap between the tubes?
A: No, the connector is designed to be an "inline" or "internal" joiner, meaning the two tube ends meet flush against each other (or a very thin center ring, depending on the specific model) for a nearly invisible transition.
