Base Plate with 135mm Insert for 40×40×2mm Square Tube

Product Overview

The Base Plate with Insert is a precision-engineered stainless steel mounting component designed for 40 × 40 × 2mm square tube railing and handrail systems. Featuring a 100 × 100mm square base plate and a 135mm high integrated insert, this base fitting provides a stable and secure connection between square tubing and the supporting surface.

The insert is designed to accommodate 40 × 40 × 2mm square tube, creating a clean and rigid structural connection while maintaining a compact architectural appearance. The base plate incorporates a 70 × 70mm fixing-hole layout for secure surface installation, making it suitable for a wide range of railing, handrail, partition, and architectural metalwork applications.

Manufactured in SS304 or SS316 stainless steel, the component can be supplied with a polished or brushed surface finish to meet different architectural and project requirements. The technical drawing identifies the product as 94942.040.36 and specifies the 40 × 40 × 2mm tube application.

Key Features

• Square Tube Compatible – Designed specifically for 40 × 40 × 2mm square tubing.
• 100 × 100mm Base Plate – Provides a broad and stable mounting footprint.
• 135mm High Insert – Extended insert design supports a secure tube connection.
• 70 × 70mm Fixing Layout – Precision-positioned mounting holes simplify surface installation.
• Integrated Tube Insert – Creates a clean connection between the square tube and base plate.
• SS304 / SS316 Options – Suitable for interior and more demanding environmental applications.
• Polished or Brushed Finish – Available in architectural stainless steel surface treatments.
• Compact Structural Design – Combines the base and insert into one streamlined fitting.
• Architectural Appearance – Suitable for modern railing and handrail systems where exposed hardware needs a clean finish.
• Factory Manufacturing – Suitable for OEM, project-based and bulk B2B requirements.

Applications

The Base Plate is designed for square tube railing and architectural support systems where a secure surface-mounted connection is required.

Typical applications include:

Glass & Metal Railing Systems
Used as a structural base fitting for square stainless steel railing assemblies.

Stainless Steel Handrails
Suitable for stair handrails, corridor railings, balcony systems and architectural handrail structures.

Commercial & Residential Projects
Applicable to villas, apartments, office buildings, shopping centers and public facilities.

Hospitality & Architectural Projects
Suitable for hotels, resorts, restaurants, outdoor terraces and contemporary architectural installations.

Custom Fabrication
Can be incorporated into OEM railing assemblies and project-specific stainless steel structures.

Technical Specifications

Additional Drawing Dimensions

The engineering drawing also indicates several internal and connection dimensions, including:

Note: The dimensions above are extracted from the supplied engineering drawing. Small profile/radius dimensions that are not clearly dimensioned on the drawing are intentionally not added or estimated. The original drawing should be used as the manufacturing reference for complete dimensional control.

Engineering Design

Integrated Base & Insert Structure

The component combines the 100 × 100mm mounting plate and 135mm vertical insert into a compact structural fitting. This integrated design reduces the number of separate components required within a square-tube railing assembly.

Designed for 40 × 40 × 2mm Tube

The insert is specifically designed around the 40 × 40 × 2mm square tube profile, allowing the fitting to be incorporated directly into a standardized square railing system.

Stable Four-Point Fixing Layout

The 70 × 70mm fixing-hole arrangement distributes mounting forces across the base plate and provides a symmetrical installation layout for surface mounting.

Reinforced Base Geometry

The base incorporates formed/reinforced structural sections around the central insert area, increasing rigidity while maintaining a relatively compact architectural profile, as shown in the engineering drawing.

Surface Finish Options

Brushed Stainless Steel

A subtle directional finish suitable for modern architectural railing and handrail systems.

Polished Stainless Steel

A brighter reflective finish for projects where a more decorative stainless steel appearance is required.

Material Selection

SS304
A practical option for general architectural and indoor applications.

SS316
Recommended for applications requiring enhanced corrosion resistance, including demanding outdoor environments.

The supplied engineering drawing specifies SS304 / SS316 and requires the surface to be polished or brushed.

Packaging & Delivery

Each Base Plate is securely protected against scratching and surface damage during handling and transportation. Components can be packed individually or in bulk according to order requirements.

For project and wholesale orders, we can provide:

• Individual protective packaging
• Export cartons
• Palletized shipment
• Custom packaging requirements
• Bulk B2B orders
• OEM project packing

Sea, air and express shipping can be arranged according to order quantity and delivery requirements.

Why Choose Our Base Plate

Precision Tube Compatibility

Engineered specifically for 40 × 40 × 2mm square tubing, helping ensure reliable system integration.

Accurate Engineering Dimensions

The base, insert and fixing layout are manufactured according to the supplied engineering drawing for consistent installation across production batches.

SS304 & SS316 Material Options

Different stainless steel grades are available to accommodate project requirements and environmental conditions.

Architectural Stainless Steel Finish

Polished and brushed finishes provide flexibility for both functional and decorative railing applications.

Factory-Direct Manufacturing

As a professional stainless steel hardware manufacturer, we support OEM, ODM, customized components and bulk project orders.

Suitable for System Integration

The product is designed as part of a complete square tube railing system rather than as an isolated hardware component, making it convenient for railing fabricators, contractors and distributors.

OEM & Custom Manufacturing

We support customized stainless steel hardware development based on customer drawings, tube profiles, dimensions and application requirements.

Available customization options include:

Material: SS304 / SS316
Tube Size: Customized
Base Dimensions: Customized
Insert Height: Customized
Hole Layout: Customized
Surface Finish: Polished / Brushed
Logo & Packaging: OEM available

For large railing projects, we can also coordinate multiple matching components to help maintain consistent dimensions, materials and surface finishes throughout the complete system.