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304 316 Stainless Steel Base Flange, Round Square Base Plate for Stair Balustrade Handrail Post Mounting

500 Pieces per Model / Specification
MOQ
Negotiable Based on Material, Size, Finish and Quantity
Price
304 316 Stainless Steel Base Flange, Round Square Base Plate for Stair Balustrade Handrail Post Mounting
Features Gallery Product Description Ratings & Review Request A Quote
Features
Specifications
Pipe Size: 25.4mm, 38.1mm, 42.4mm, 48.3mm, 50.8mm, 63.5mm;1″\ 1-1/2″\1.67″\1.90″\2″\2-1/2″
Thickness: 1.2mm, 1.5mm, 2.0mm
Material: SS304, SS316
Surface Finish: Mirror, Satin, Gold, Black
Basic Infomation
Place of Origin: Foshan, Guangdong, China
Brand Name: Winsco
Certification: ISO 9001; MTC Available; SGS / TÜV Inspection Upon Request
Model Number: W20260909
Document: WINSCO LEAF.pdf
Payment & Shipping Terms
Packaging Details: Individual Protective Bag and Export Carton; Custom Packing Available
Delivery Time: 7–15 Working Days; 15–25 Days for Customized Orders
Payment Terms: L/C,T/T
Supply Ability: 50000pcs per month
Product Description
304 316 Stainless Steel Base Flange, Round Square Base Plate for Stair Balustrade Handrail Post Mounting

Round Tube Staircase and Balustrade Fitting

Premium stainless steel base flange in round, square and special shapes. Available in 304 or 316 grade with mirror or satin finish. Perfect for stair balustrade, handrail post mounting for indoor & outdoor projects.

304 316 Stainless Steel Base Flange, Round Square Base Plate for Stair Balustrade Handrail Post Mounting

  • Flexible specification Six tube diameters and three wall thickness options.
  • Material choice SS304 for general projects or SS316 for humid and coastal environments.
  • Finish options Mirror polished, satin brushed, gold and black.
  • Factory controlled Forming, welding, polishing, inspection and export packing.

Product Views

304 316 Stainless Steel Base Flange, Round Square Base Plate for Stair Balustrade Handrail Post Mounting

Curved modular sections allow the connector layout to be matched to the railing design.

Available Specifications

Specification Available Options
Product Type Multi angle adjustable stainless steel handrail connector
Material SS304 or SS316
Compatible Tube OD 25.4mm 38.1mm 42.4mm 48.3mm 50.8mm 63.5mm/

1″\ 1-1/2″\1.67″\1.90″\2″\2-1/2″

Tube Wall Thickness 1.2mm 1.5mm 2.0mm
Surface Finish Mirror polished Satin brushed Gold Black
Tube Shape Round tube
Applications Stair handrails Balcony railings Balustrades Guardrails
Customization Material Tube size Finish Label and packing

Typical Applications

Suitable for round tube stair handrails, balcony railings, balustrades, guardrails and customized metalwork. Confirm the mating tube outside diameter, wall thickness and required finish before production.

Production Process

304 316 Stainless Steel Base Flange, Round Square Base Plate for Stair Balustrade Handrail Post Mounting

Controlled forming, welding, end forming, cleaning and polishing help maintain consistent shape, fit and surface quality from batch to batch.

Application Cases

304 316 Stainless Steel Base Flange, Round Square Base Plate for Stair Balustrade Handrail Post Mounting

Quality Inspection

304 316 Stainless Steel Base Flange, Round Square Base Plate for Stair Balustrade Handrail Post Mounting

Each batch is visually checked and measured against the order specification, including tube fit, wall thickness, joint alignment, surface consistency and packing condition.

Packing and Container Loading

304 316 Stainless Steel Base Flange, Round Square Base Plate for Stair Balustrade Handrail Post Mounting

Protective wrapping, labeled cartons and organized container loading help reduce scratches and handling damage during international transport.

Frequently Asked Questions

What tube sizes are available Choose 25.4mm, 38.1mm, 42.4mm, 48.3mm, 50.8mm or 63.5mm round tube sizes.

Should I select SS304 or SS316 SS304 suits general architectural use. SS316 is recommended for humid, coastal or more corrosive environments.

Can the connector be customized Material, tube size, wall thickness, finish, label and packing can be confirmed to match the project order.

Ordering Information

For an accurate quotation, please provide the material grade, tube outside diameter, wall thickness, surface finish, quantity and destination port.

Ratings & Review

Overall Rating

4.0
Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings
5 stars
0%
4 stars
100%
3 stars
0%
2 stars
0%
1 stars
0%

All Reviews

A
Abdullah Al-Harbi
Saudi Arabia Jun 25.2026
We ordered WinscoMetal’s 15.9mm AISI 304 mirror-polished tubes for staircase infill bars. The diameter, wall thickness, and surface finish were consistent throughout the shipment. The tubes fitted our railing components accurately and helped us complete the installation efficiently.
Y
Youssef Ben Mohamed
Morocco May 4.2023
We bought these 31.8mm stainless steel handrail elbows for a coastal hotel balustrade project in Morocco. We chose SUS316 grade for its great resistance against salt spray and humid coastal climate. Available grades include SUS201, SUS304 and SUS316, with mirror and satin surface finishes. The bend is perfectly smooth without deformation. Dimensions are accurate and fit round tubes seamlessly. Well packed with zero scratches on arrival. We will reorder for our upcoming construction projects.
R
Rafael E., Decoration Project Officer
Peru Dec 2.2022
Good value for money, PVD‑colored tubes bring great visual effect
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Get in touch with us
Contact Person : Mr. Tian
Tel : +8615820648532
Fax : 0086-757-86856916
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