The End Cap Dome Top is a premium architectural hardware solution designed to cleanly cover and close the exposed ends of open pipes, poles, or tubes. Widely utilized in both residential and commercial construction, this heavy-duty stainless steel end cap delivers a smooth, rounded finish that elevates the visual appeal of modern railing systems while serving crucial functional purposes. By eliminating sharp raw metal edges, it protects pedestrians from injury and actively seals structural piping against internal dust, debris, and moisture ingress.
Engineered for durability and precision, these specialized handrail fittings are manufactured from top-tier architectural alloys, including AISI 304, AISI 316, and Duplex 2205. Each cap features a 6 mm visible convex dome profile and a 10 mm insertion depth equipped with a textured, knurled edge for an ultra-secure, mechanical friction fit. Additionally, the bottom view reveals an advanced triple-ribbed internal structure that provides maximum cross-sectional strength and prevents tube deformation under physical impact. These components are available to fit standard architectural tube sizes of 33.7 mm, 42.4 mm, and 48.3 mm.
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Category |
Part NO. | Ø |
Material |
Surface |
Place of Production |
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End Caps
|
B002.33.20 |
33.7×2.0mm |
AISI 304,316 or Duplex SS 2205 |
Satin or Mirror polished |
Shandong, China |
|
End Caps |
B002.42.20 |
42.4×2.0mm |
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End Caps |
B002.42.26 |
42.4×2.6mm |
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|
End Caps |
B002.48.20 |
48.3×2.0mm |
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End Caps |
B002.48.26 |
48.3×2.6mm |
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 is the primary difference between an End Cap Dome Top and a flat-top version?
A: While both securely seal hollow tubing, the End Cap Dome Top features a subtle, convex rounded shape with a 6 mm visible edge profile. This design is highly preferred for architectural styles that favor smooth, softened geometric lines over rigid, hard-angled minimalist lines.
Q2: Which stainless steel material grade should I specify for my project?
A: Material selection depends entirely on the environmental exposure of your installation site:
AISI 304: Best suited for indoor installations or low-moisture architectural projects.
AISI 316: Highly recommended for outdoor architectural handrails, balustrades, and high-traffic areas prone to weathering.
Duplex 2205: Engineered specifically for extreme conditions, such as industrial facilities, coastal infrastructure, or marine environments facing heavy saltwater exposure.
Q3: Is specialized hardware or welding required for installation?
A: No, welding is not required. The cap is designed for an efficient, hardware-free mechanical installation. It utilizes a 10 mm triple-ribbed internal structure and a textured knurled exterior edge to establish a permanent friction fit. Simply align the cap with a clean, square-cut tube opening and drive it home using a soft-faced rubber mallet.
Q4: What specific tube dimensions are these domed end caps compatible with?
A: These caps are precision-engineered to integrate seamlessly with industry-standard architectural tubing diameters, specifically 33.7 mm, 42.4 mm, and 48.3 mm outer diameters. Always confirm your exact pipe outer diameter measurements before placing your order.
