NATIONAL GUARD Door Threshold: Saddle, Aluminum
The NATIONAL GUARD Door Threshold is a 4 ft long aluminum saddle threshold (MPN 8424DKB-48) with a fluted transition type. This product is a saddle threshold designed for door openings.
SKU 3G-OTH-505120
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Product Description
The NATIONAL GUARD Door Threshold is a 4 ft long aluminum saddle threshold (MPN 8424DKB-48) with a fluted transition type. This product is a saddle threshold designed for door openings.
Frequently Asked Questions
What is a NATIONAL GUARD 8424DKB-48 door threshold used for?
The NATIONAL GUARD 8424DKB-48 is a 4 ft long aluminum saddle threshold with a fluted transition type. It is used to seal the gap under a door opening, providing a smooth transition between flooring surfaces while helping to block drafts, moisture, and debris.
What are the specifications of the NATIONAL GUARD 8424DKB-48 threshold?
The NATIONAL GUARD 8424DKB-48 is a saddle threshold made of aluminum, 4 ft in length, with a fluted transition type. The manufacturer part number is 8424DKB-48. It is designed for door openings to provide a durable, weather-resistant seal and a finished look.
Where to buy a NATIONAL GUARD 8424DKB-48 threshold worldwide?
3G Electric supplies the NATIONAL GUARD 8424DKB-48 aluminum saddle threshold to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to order this fluted transition threshold for your door opening.
How to install a NATIONAL GUARD saddle threshold?
To install a NATIONAL GUARD saddle threshold, first measure and cut the 4 ft aluminum threshold to fit your door opening if needed. Clean the subfloor, apply a bead of construction adhesive, position the threshold, and secure it with screws. Ensure the fluted transition faces the interior for a smooth finish.
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.









