The Stainless Steel Handrail Support Adapter (Internal Fit) is an essential architectural connector engineered to attach round handrails to support posts, walls, or structural anchors. Designed for a flush internal fit, this compact adapter slides into vertical post pipes to create a sleek, concealed joint without visible external collars or bulky hardware. It provides high structural strength and precise alignment, ensuring a smooth transition between support posts and cylindrical handrails.
The adapter features a contoured top saddle profile (∅ 2) engineered to seat round handrails measuring 25.4 mm, 38.1 mm, or 50.8 mm. Its lower cylindrical push-in sleeve (∅ 1) inserts internally into matching vertical post tubes (25.4 mm, 38.1 mm, or 50.8 mm), while providing collar heights (A of 3 mm, 15 mm, or 27 mm. Featuring a pre-drilled central mounting hole for screw-fastened or welded assemblies, this component is precision-cast from AISI 304, AISI 316, or Duplex SS 2205 stainless steel. Available in brushed satin or mirror-polished surface finishes, these versatile handrail fittings serve as an ideal handrail support solution across commercial, residential, and marine balustrade projects.
|
Category |
Part NO. |
Fit for Tube
(mm) |
A (mm) |
Ø1 (mm) |
Ø2 (mm) |
Material |
Surface |
Place of Production |
|
Handrail Supports |
E081025 |
Ø25.4 × 1.5
|
3 | 25.4 | 25.4 |
AISI 304, 316 or Duplex SS 2205 |
Satin or Mirror polished |
Shandong, China |
|
Handrail Supports |
E081038 |
Ø25.4 ×1.5
|
3 | 25.4 |
38.1 |
|||
|
Handrail Supports |
E081050 |
Ø25.4 × 1.5
|
3 | 25.4 |
50.8 |
|||
|
Handrail Supports |
E081538 |
Ø38.1 × 1.5
|
15 | 38.1 |
38.1 |
|||
|
Handrail Supports |
E081550 |
Ø38.1 × 1.5
|
15 | 38.1 |
50.8 |
|||
|
Handrail Supports |
E082050 |
Ø50.8 × 1.5
|
27 | 50.8 |
50.8 |
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 handrail support samples approved
9. Warranty Service: 1 Year
10. After-sales Service: Online Technical Support, Return And Replacement
Q1: What is the main benefit of an internal fit Handrail Support Adapter?
A: An internal fit adapter conceals the mounting sleeve entirely inside the post tube, producing a clean, flush joint without external flanges or visible outer collars.
Q2: How is the Handrail Support Adapter secured to the handrail and post?
A: The lower base sleeve inserts inside the post tube, while the upper saddle cradles the round handrail. Installers secure the fitting through the pre-drilled central hole using a counter-sunk screw or through direct tackle welding.
Q3: What tube diameters are compatible with this adapter?
A: Both the lower insertion base (∅ 1) and upper curved saddle (∅ 2) are designed for standard round tubing sizes of 25.4 mm (1 inch), 38.1 mm (1.5 inch), and 50.8 mm (2 inch).
Q4: Which stainless steel material grade is best suited for outdoor or coastal installations?
A: AISI 316 or Duplex SS 2205 stainless steel is strongly recommended for marine and outdoor environments due to superior resistance to atmospheric oxidation and chloride pitting.
