Product Introduction
Our square tube end plugs are injection-molded PP caps designed to securely seal square metal tubing, providing a clean finish, protecting internal structures from debris, reducing noise, and supporting optional caster installation in furniture and industrial frames.
Technical Specifications
Core Technical Specifications
|
Parameter |
Specification (Standard Square Matrix) |
|
Material |
High-Grade Recycled Polypropylene (Black PP) |
|
Applicable Tube Thickness |
18–22 Gauge (≈0.8 mm - 1.3 mm) |
|
Mounting Type |
Direct Push-In Flush Fit |
Square Tube Outside Dimension
|
Outside dimension of the tube |
|
20mm / 0.787 inch |
|
25mm / 1 inch |
|
30mm /1.181 inch |
|
32mm / 1.25 inch |
|
38mm / 1.5 inch |
|
50mm / 2 inch |
Product Features
Flush-Fit Ribbed Engineering
Multi-rib design ensures tight friction fit inside tubing, preventing loosening or back-out.
Premium Shock-Absorbing PP
High-purity polypropylene resists impact, hammering, and deformation during installation.
Floor Protection & Noise Mitigation
Seals sharp metal edges to reduce noise and prevent floor scratching during movement.
Quality & Compliance
Strict Tolerance Manufacturing: Produced under rigorous quality baselines in Taiwan to guarantee consistent exterior dimensions, ensuring zero slippage within standard 18-22ga iron profiles.
Excellent Environmental Resistance: The non-corrosive polymer structure remains stable against moisture, impact fatigue, and standard commercial cleaners.
Eco-Friendly Materials: Formulated using non-toxic recycled materials, meeting full international environmental and restriction directives.
Installation Guide
Packaging & Logistics
Minimum Order Quantity (MOQ): 5,000 pieces per standardized size batch.
Logistics Packing: Packed securely inside standard bulk export cartons or tailored to customized packaging protocols to eliminate transit scuffing.
Trade Terms: FOB Taiwan, China.
Payment Method: T/T.
Production Delivery Lead Time: Approximately 45 to 60 working days for standard volume manufacturing runs.
FAQ
Q: What materials are the square tube end plugs made from?
A: They are injection molded from high-quality recycled polypropylene (PP), offering excellent impact resistance, durability, and long service life.
Q: What tube sizes are compatible with these end plugs?
A: They are designed to fit a wide range of standard square steel tubes. Please refer to the size chart or contact us for the correct size selection.
Q: Are the plugs easy to install?
A: Yes. They feature a push-in ribbed design that allows quick installation without adhesives or special tools.
Q: Can these plugs be used outdoors?
A: Yes. Polypropylene provides good resistance to moisture, corrosion, and normal outdoor environments. UV-resistant materials are also available upon request.
Q: Can the plugs support caster installation?
A: Yes. Selected models are designed to accommodate stem casters for furniture, carts, shelving, and other mobile equipment.
Q: What applications are these square tube end plugs suitable for?
A: They are widely used in furniture, metal tubing, fitness equipment, display racks, fences, machinery frames, and other steel tube products.
Q: Can you provide customized sizes or colors?
A: Yes. We offer customized dimensions, colors, materials, and logo services for OEM and ODM projects.
Q: What is the minimum order quantity?
A: The standard MOQ is 5,000 pieces per size. Please contact us for special project requirements.
Q: How do I choose the correct plug size?
A: Simply provide the outside dimensions and wall thickness of your square tube, and we will recommend the most suitable plug model.
Q: What support do you provide for bulk orders?
A: We provide sample evaluation, technical assistance, customized packaging, and reliable production scheduling to support long-term OEM and wholesale customers.
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