These are self‑locking nylon “zip ties” designed for bundling and securing cables, wires, pipes, or other grouped items. The black (UV) version is intended for both indoor and outdoor applications, where exposure to sunlight or UV radiation may occur. They come in packs (e.g. 100 per pack) and include a resealable bag.
The Home Depot
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homedepot.ca
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The head of each tie contains an internal ratcheting mechanism (serrations) that allows the tail to be inserted and locked in place, preventing loosening. The design aims to balance a low insertion force (easy to thread) with sufficient holding strength.
homedepot.ca
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These are often UL 21S rated (for supporting cables) and meet industry standards for standard nylon cable ties.
The Home Depot
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They are commonly used in electrical, telecommunications, HVAC, construction, or general bundling tasks.