304 316 Stainless Steel Base Flange, Round Square Base Plate for Stair Balustrade Handrail Post Mounting
SS304 SS316 Stainless Steel Railing Base Plate Flanges
Round and Square Mounting Bases for Handrails and Balustrades
These stainless steel railing base plate flanges connect round or square posts and handrail tubes to floors, walls or other supporting surfaces. Round, square, flat and angled designs are available for staircase, balcony, balustrade and guardrail projects.
- Multiple designs Round and square bases, socket flanges, flat plates and angled mounting styles.
- Tube compatibility Common round tube sizes include 1" (25.4 mm), 1-1/2" (38.1 mm), 1.67" (42.4 mm) and 2" (50.8 mm).
- Material and finish SS304 or SS316 with mirror-polished or satin-brushed surfaces.
- Factory controlled Forming, punching, welding, polishing, inspection and export packing.
Available Specifications
| Specification | Available Options |
|---|---|
| Product Type | Stainless steel railing base plate flange |
| Material | SS304 or SS316 |
| Compatible Tube OD | 1" (25.4 mm), 1-1/2" (38.1 mm), 1.67" (42.4 mm), 2" (50.8 mm) |
| Base Shape | Round, square, rectangular or angled design, depending on model |
| Surface Finish | Mirror polished or satin brushed |
| Tube Shape | Round or square tube, depending on model |
| Mounting Hole Pattern | Two, three or four holes, depending on model |
| Customization | Base size, tube size, hole pattern, finish, label and packing |
Typical Applications
Suitable for staircase posts, balcony railings, balustrades, guardrails and wall-mounted handrails. Before production, confirm the tube shape and outside diameter, base dimensions, mounting-hole quantity and spacing, surface finish and installation direction.
Production Process
Stamping or forming, hole punching, socket welding, cleaning and polishing are controlled to maintain a consistent base profile, mounting pattern, tube fit and surface appearance from batch to batch.
Application Cases
Quality Inspection
Each batch is visually checked and measured against the order specification. Inspection covers material grade, base dimensions, tube fit, mounting-hole position, plate flatness, weld quality, surface finish and packing condition.
Packing and Container Loading
Individual protective wrapping, labeled cartons and organized container loading help reduce scratches, deformation and handling damage during international transport.
Frequently Asked Questions
What base plate styles are available Round, square, rectangular, flat, socket and angled designs are available. Exact dimensions depend on the selected model or approved drawing.
What tube sizes are available Common round tube outside diameters are 1" (25.4 mm), 1-1/2" (38.1 mm), 1.67" (42.4 mm) and 2" (50.8 mm). Other sizes can be evaluated against a drawing or sample.
Should I select SS304 or SS316 SS304 suits general architectural use. SS316 is recommended for humid, coastal or more corrosive environments.
Ordering Information
For an accurate quotation, please provide the product image or model, material grade, tube shape and outside diameter, base dimensions, mounting-hole quantity, hole diameter and spacing, surface finish, quantity and destination port.
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