Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

NATIONAL GUARD 426SIA-3 Saddle Threshold, Aluminum, 3 ft, Fluted - Saddle Thresholds
NATIONAL GUARDSaddle Thresholds

NATIONAL GUARD 426SIA-3 Saddle Threshold, Aluminum, 3 ft, Fluted

The NATIONAL GUARD Door Threshold is a 3 ft long aluminum saddle threshold (MPN 426SIA-3) featuring a fluted transition type. This product is a saddle threshold designed for door openings.

SKU 3G-OTH-505165

Also listed as: 426SIA3 · 426SIA 3

Brand
NATIONAL GUARD
Item
426SIA-3 Saddle Threshold, Aluminum, 3 ft, Fluted
Category
Saddle Thresholds
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

NATIONAL GUARD
Manufacturer Part Number
426SIA-3
Type
Aluminum
Lg
3 ft
Transition Type
Fluted

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

NATIONAL GUARD Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The NATIONAL GUARD Door Threshold is a 3 ft long aluminum saddle threshold (MPN 426SIA-3) featuring a fluted transition type. This product is a saddle threshold designed for door openings.

Frequently Asked Questions

What is a NATIONAL GUARD 426SIA-3 door threshold used for?

The NATIONAL GUARD 426SIA-3 is a 3 ft aluminum saddle threshold used to seal the gap under a door opening. Its fluted transition type provides a finished, slip-resistant surface for pedestrian traffic in commercial or industrial doorways.

What are the specifications of the NATIONAL GUARD 426SIA-3 threshold?

The NATIONAL GUARD 426SIA-3 is a 3 ft long aluminum saddle threshold with a fluted transition type. The manufacturer part number is 426SIA-3. It is designed for door openings and is made of durable aluminum.

Where to buy a NATIONAL GUARD 426SIA-3 threshold worldwide?

3G Electric supplies the NATIONAL GUARD 426SIA-3 aluminum saddle threshold to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this fluted transition threshold.

How to install a NATIONAL GUARD saddle threshold?

Install the NATIONAL GUARD 426SIA-3 by cutting it to exact door width, then securing it to the subfloor with appropriate fasteners. Ensure the fluted surface faces up for traction. Seal edges with silicone for weatherproofing. Always follow local building codes.

NATIONAL GUARD Products

3G Electric supplies NATIONAL GUARD saddle thresholds. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
This automatic door bottom seals the gap under a door to block drafts, light, and sound. Made of aluminum, it measures 48 inches in length and 2 1/4 inches in width. Suitable for commercial and industrial door applications requiring a corrosion-resistant seal
NATIONAL GUARD
This automatic door bottom seals the gap under a door to block drafts, light, and sound. Made of aluminum, it measures 48 inches in length and 2 1/4 inches in width. Suitable for commercial and industrial door applications requiring a corrosion-resistant seal
Door window kit for steel doors. Steel frame with powder-coated gray finish. Opening height 35 in, opening width 5 in. Window height 33 in, window width 3 in
NATIONAL GUARD
Door window kit for steel doors. Steel frame with powder-coated gray finish. Opening height 35 in, opening width 5 in. Window height 33 in, window width 3 in
This low-profile pipe-style guardrail is a straight section made of yellow steel, designed for floor-mounted installation. It features an 8-inch mounting plate width and does not include a mid-rail or mounting hardware. Commonly used to create safety barriers around machinery, equipment, or pedestrian walkways in industrial facilities
This low-profile pipe-style guardrail is a straight section made of yellow steel, designed for floor-mounted installation. It features an 8-inch mounting plate width and does not include a mid-rail or mounting hardware. Commonly used to create safety barriers around machinery, equipment, or pedestrian walkways in industrial facilities
This low-profile pipe-style guardrail is constructed from steel with a yellow finish for high visibility. It is floor mounted with a 3/8 in top rail height and a 1 in mounting hole diameter. Mid-rail is not included. Typical applications include perimeter protection in industrial facilities such as warehouses and manufacturing plants
This low-profile pipe-style guardrail is constructed from steel with a yellow finish for high visibility. It is floor mounted with a 3/8 in top rail height and a 1 in mounting hole diameter. Mid-rail is not included. Typical applications include perimeter protection in industrial facilities such as warehouses and manufacturing plants

More from NATIONAL GUARD

View all NATIONAL GUARD parts
Aluminum saddle threshold, 4 ft length, with smooth transition type. Used to bridge gaps under doors, providing a level transition between flooring surfaces and reducing tripping hazards in commercial and industrial doorways
NATIONAL GUARD
Aluminum saddle threshold, 4 ft length, with smooth transition type. Used to bridge gaps under doors, providing a level transition between flooring surfaces and reducing tripping hazards in commercial and industrial doorways
This 6 ft aluminum saddle threshold features a fluted transition surface. It is used at doorways to bridge gaps between flooring materials, providing a smooth passage and reducing drafts in commercial or industrial openings
NATIONAL GUARD
This 6 ft aluminum saddle threshold features a fluted transition surface. It is used at doorways to bridge gaps between flooring materials, providing a smooth passage and reducing drafts in commercial or industrial openings
This 6 ft aluminum saddle threshold features a fluted transition type. It is designed to seal the gap under door openings, providing a smooth transition between flooring surfaces and helping to block drafts, dust, and pests
NATIONAL GUARD
This 6 ft aluminum saddle threshold features a fluted transition type. It is designed to seal the gap under door openings, providing a smooth transition between flooring surfaces and helping to block drafts, dust, and pests
This 6 ft aluminum saddle threshold provides a smooth transition for foot traffic and wheeled equipment. It seals the gap under doors to block drafts, dust, and pests. Suitable for use in commercial and industrial doorways
NATIONAL GUARD
This 6 ft aluminum saddle threshold provides a smooth transition for foot traffic and wheeled equipment. It seals the gap under doors to block drafts, dust, and pests. Suitable for use in commercial and industrial doorways
Aluminum saddle threshold, 4 ft long, with a fluted transition surface. Designed to seal gaps under doors in commercial or industrial openings, providing a transition between flooring surfaces while blocking drafts, moisture, and debris
NATIONAL GUARD
Aluminum saddle threshold, 4 ft long, with a fluted transition surface. Designed to seal gaps under doors in commercial or industrial openings, providing a transition between flooring surfaces while blocking drafts, moisture, and debris
This 4 ft vinyl saddle threshold provides a smooth transition between flooring surfaces at doorways. It seals the gap under the door to block drafts, moisture, and debris. Suitable for interior or sheltered exterior door applications in commercial or industrial settings
NATIONAL GUARD
This 4 ft vinyl saddle threshold provides a smooth transition between flooring surfaces at doorways. It seals the gap under the door to block drafts, moisture, and debris. Suitable for interior or sheltered exterior door applications in commercial or industrial settings
Aluminum saddle threshold, 3 ft length, with fluted transition type. Used to bridge gaps under doors, sealing against drafts, moisture, and debris in commercial or industrial doorways
NATIONAL GUARD
Aluminum saddle threshold, 3 ft length, with fluted transition type. Used to bridge gaps under doors, sealing against drafts, moisture, and debris in commercial or industrial doorways
This 4 ft aluminum saddle threshold features a fluted transition type. It is used to seal the gap under doors, providing a smooth transition between flooring surfaces while blocking drafts, dust, and pests. Suitable for commercial and industrial door openings
NATIONAL GUARD
This 4 ft aluminum saddle threshold features a fluted transition type. It is used to seal the gap under doors, providing a smooth transition between flooring surfaces while blocking drafts, dust, and pests. Suitable for commercial and industrial door openings