NATIONAL GUARD Door Threshold: Heavy Duty, Aluminum
The NATIONAL GUARD 513HD-36 is a heavy-duty aluminum door threshold, 3 ft long, with a fluted transition type. 3G Electric sources this genuine industrial threshold as part of our broader capability to deliver across…
SKU 3G-OTH-505734
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Product Description
The NATIONAL GUARD 513HD-36 is a heavy-duty aluminum door threshold, 3 ft long, with a fluted transition type. 3G Electric sources this genuine industrial threshold as part of our broader capability to deliver across 14 industrial departments, with specialist depth in combustion, pumps and controls.
Frequently Asked Questions
What is the NATIONAL GUARD 513HD-36 door threshold used for?
The NATIONAL GUARD 513HD-36 is a heavy-duty aluminum door threshold designed for commercial and industrial doorways. Its fluted transition type provides a durable, slip-resistant surface at the bottom of a door opening, sealing the gap against weather and debris while accommodating heavy foot or cart traffic.
What are the specifications of the NATIONAL GUARD 513HD-36?
The NATIONAL GUARD 513HD-36 is a heavy-duty aluminum door threshold measuring 3 ft in length. It features a fluted transition type and is manufactured under part number 513HD-36. The aluminum construction offers corrosion resistance and long-term durability in demanding industrial environments.
Where to buy the NATIONAL GUARD 513HD-36 worldwide?
3G Electric supplies the genuine NATIONAL GUARD 513HD-36 heavy-duty aluminum door threshold to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time; we source this threshold as part of our broad industrial supply capability.
How to install a heavy-duty door threshold like the NATIONAL GUARD 513HD-36?
Installation of a heavy-duty aluminum threshold like the NATIONAL GUARD 513HD-36 typically involves measuring the doorway width, cutting the threshold to fit if needed, and securing it with appropriate fasteners into the subfloor. Ensure the fluted surface faces the interior for traction. Follow the manufacturer's guidelines for best results.
NATIONAL GUARD Products
3G Electric supplies NATIONAL GUARD heavy duty thresholds. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









