The Square Tube End Cap is a heavy-duty casting component designed to securely seal and terminate the open ends of square stainless steel tubing in modern handrail systems. This essential end cap serves a critical triple purpose: it provides a professional, aesthetically pleasing look to open metalwork, prevents moisture and debris from entering the tubing to stop internal corrosion, and offers safety by covering sharp edges that could otherwise cause injury or surface damage. Available in dimensions of 38.1×38.1mm and 50.8×50.8mm, it is engineered from high-quality stainless steel alloys, including AISI 304, AISI 316, and Duplex SS 2205. These highly durable materials make the cap perfect for residential and commercial installations in demanding, high-moisture, or outdoor environments.
|
Category |
Part NO. |
Fit for Tube
(mm) |
A (mm) |
B (mm) |
□ (mm) |
Material |
Surface |
Place of Production |
|
Square Line |
ST0738 |
50.8 x 50.8 x 1.5
|
28 | 3 | 38.1 |
Stainless Steel 304 / 316 |
Satin or Mirror polished |
Shandong, China |
|
Square Line |
ST0750 |
50.8 x 50.8 x 1.5
|
33 | 3 | 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 end cap samples approved
9. Warranty Service: 1 Year
10. After-sales Service: Online Technical Support, Return And Replacement
Q1. What tube dimensions are compatible with these end caps?
A: These square handrail fittings are specifically designed to fit standard architectural square tubing in two sizes: 38.1x38.1mm and 50.8x50.8mm.
Q2. Which material grade should be selected for high-exposure environments?
A: For standard interior environments, AISI 304 offers a cost-effective and durable solution. For outdoor, marine, or high-moisture applications, specifying AISI 316 or Duplex SS 2205 is highly recommended due to their exceptional corrosion resistance.
Q3. What do the measurements 'A' and 'B' represent in the specifications?
A: Dimension 'A' represents the total depth or height of the portion that inserts directly into the tube, ranging between 28mm and 33mm depending on the model. Dimension 'B' indicates the thickness of the external flange, which forms the visible lip that sits flush against the edge of the tube.
Q4. How is this Square Tube End Cap installed?
A: The end cap features a dedicated insertion portion designed to be simply pushed or hammered into the open end of the square tube, removing the need for on-site welding or extensive mechanical fastening.
Q5. How does this end cap protect the longevity of the handrail?
A: By effectively sealing the open ends of the metalwork, the Square Tube End Cap prevents rain, condensation, and environmental debris from getting trapped inside the tubing. This stops the growth of interior corrosion and preserves the structural integrity of the entire railing system.
