Internal Handrail Domed End Cap with Spring Grip-Ø42 x 1.5 mm - AISI 304 Mirror Polished Finish

Internal Handrail Domed End Cap with Spring Grip

🔹 What Is a Spiked Internal Dome End Cap?

The TKB Spiked Internal Dome End Cap is a premium railing accessory designed to close open ends of horizontal handrail pipes in staircase and railing systems. Unlike external caps, this model fits inside the pipe and locks in place using integrated gripping spikes.

🔹 Key Functional Advantage

• Push-in internal installation
• Spiked structure grips the inner pipe wall
• No chance of loosening or falling out
• No external protrusion or hand contact
• Compensates pipe diameter and roundness imperfections

 

🔹 Why Choose a Spiked Internal Cap?

Traditional caps often fail due to vibration, tolerance issues, or frequent hand contact. This product eliminates all common failures by creating permanent internal pressure against the pipe wall.

🔹 Dome Shape Benefits

• Smooth, rounded top surface
• No sharp edges
• Ergonomic hand contact
• Modern architectural appearance

 

🔹 Technical Dimensions

Compatible Pipe Sizes (D): Ø 42 × 1.5 mm - Ø 51 × 1.5 mm - Ø 60 × 1.5 mm

Internal Diameter (C): Ø 40 mm - Ø 49 mm - Ø 58.5 mm

Cap Height (E): 11.5 mm - 15 mm - 18 mm

🔹 Material & Finish

• AISI 304 / AISI 316 Stainless Steel
• Mirror Polished Surface
• Corrosion Resistant
• Indoor & Outdoor Use

 

🔹 Applications

• Staircase handrails
• Stainless steel railing systems
• Residential and commercial projects
• Hotels, malls, offices
• LED-integrated handrail designs

 

🔹 Advantages Over External End Caps

Feature	Spiked Internal Cap
Hand contact	No
Loosening risk	None
Tolerance flexibility	High
Visual continuity	Excellent
Long-term durability	Superior

 

🔹 Ideal For

• Railing manufacturers
• Staircase fabricators
• Architects & interior designers
• Commercial project developers

 

Tags: spiked handrail end cap, internal handrail cap, stainless steel railing end cap, dome handrail cap, push in pipe end cap, anti loosening handrail cap, stainless steel pipe cap, internal railing accessory, stair handrail end cover