The Stainless Steel Tube Adapter is a precision connector engineered to bridge and transition between structural stainless steel tubes within modern railing and handrail assemblies. Designed specifically for joining 42.4 mm and 48.3 mm round tubing, this adapter establishes a seamless, secure, and visually continuous connection between intersecting handrails and balustrade structural posts.
Featuring dual curved interfaces (Ø 1 & Ø 2), the saddle ends conform flush against the outer profiles of intersecting structural tubes to act as a heavy-duty spacer block. The solid cylindrical body features an outer diameter of 25 mm and a total sleeve length of 42.5 mm. Concentric mounting holes (Ø 8.5 mm) at both ends accommodate standard M8 fixing screws or anchors for rigid, vibration-resistant mechanical attachment. Manufactured from high-grade AISI 304 and AISI 316 stainless steel with fine satin brushed or high-luster mirror polished surface treatments, these premium handrail fittings deliver long-term durability and structural safety for staircases, balconies, ramps, and architectural guardrails.
|
Category |
Part NO. |
Ø1 |
Ø2 |
Material |
Surface |
Place of Production |
|
Handrail Adapters |
D004.42.42 |
42.4mm |
42.4mm |
Stainless Steel 304 / 316 |
Satin or Mirror polished |
Shandong, China |
|
Handrail Adapters |
D004.48.48 |
48.3mm |
48.3mm |
1. Tube Thickness: 2.0mm or 2.6mm
2. Manufacturing Process: Investment Casting + Precision Machining+Polishing
3. Application Scenario: Hotel, Villa, Apartment, Office Building, Hospital, School, Mall, Sports Venues, Leisure Facilities, Supermarket, Park, Bathroom, Outdoor, Exterior, Entry, Hall, Staircase, Gym
4. Use Place: Bridge Railings / Handrails, Deck Railings / Handrails, Porch Railings / Handrails, Stair Railings / Handrails
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 handrail adapter samples approved
10. Warranty Service: 1 Year
11. After-sales Service: Online Technical Support, Return And Replacement
Q1: What is the primary function of a Stainless Steel Tube Adapter?
A: A Stainless Steel Tube Adapter acts as an intermediate connector or structural spacer between two intersecting round tubes in a railing system. Its dual curved saddle ends allow it to mount flush between vertical support posts and horizontal or inclined handrail tubes.
Q2: What are the key technical dimensions of this adapter?
A: Based on the structural design:
Outer Body Diameter: 25 mm
Total Sleeve Length: 42.5 mm
Mounting Hole Diameters: 8.5 mm on both ends (engineered for standard M8 fixing hardware)
Compatible Tube Diameters (Ø 1 & Ø 2): Fits standard 42.4 mm and 48.3 mm round architectural tubing.
Q3: Where are these handrail fittings commonly installed?
A: These adapters are widely used in commercial and residential architectural projects, including interior stairwells, exterior balcony balustrades, accessibility ramps, and public pedestrian walkways requiring robust tube-to-tube connections.
Q4: Which stainless steel grade should I select for my project?
A: Choose the material based on environmental exposure:
Stainless Steel 304 (Satin/Mirror): Ideal for dry, climate-controlled indoor applications, residential staircases, and interior commercial walkways.
Stainless Steel 316 (Satin/Mirror): Recommended for outdoor decks, exterior balconies, coastal environments, and humid swimming pool surrounds requiring high resistance to atmospheric corrosion.
Inquiry Handrail Adapter in your own design, please contact us.
