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Automotive Fir Tree Cable Ties – FT5 / FT6 / FT6-L / FT8 / FT8-L / FT10 / FT10-L Series | PA66 Nylon Self-Locking Push Mount Cable Tie for Wiring Harness Fixing
High-quality automotive fir tree cable ties made of PA66 eco-friendly nylon. FT5 / FT6L / FT8 / FT10 series with anti‑withdrawal design, smooth burr‑free surface and anti‑slip base. UL94V-2 flame‑rated. Perfect for wiring harness fixing in engine bays and electrical systems.
Key Features & Benefits
🔒 1. Multi‑Layer Buckle & Anti‑Withdrawal Design – Stay Locked Under Vibration
What it is: The strap features precision‑engineered self‑locking teeth that progressively engage as you tighten, creating a progressive ratcheting lock.
Why it matters: Once locked, the fastener will not slip or loosen, even when exposed to continuous road vibration, engine tremors, or temperature cycling. Your wiring harness remains securely fixed to the vehicle body, eliminating the risk of loose cables rubbing against sharp metal edges or hot engine components.
🌲 2. Fir Tree Fixing Head – Universal Panel Fit
What it is: The fixing head is molded into a fir‑tree profile with multiple flexible barbs.
Why it matters: Unlike arrowhead or barbed clips that only work within a narrow thickness range, the fir‑tree shape adapts to a broad spectrum of panel hole thicknesses. Simply push the head into a pre‑drilled round hole, threaded hole or blind hole – no tools required. The barbs compress on insertion and expand to grip securely, delivering a snug fit on sheet metal, plastic panels and composite materials.
🛡️ 3. PA66 Eco‑Friendly Nylon – Heat, Chemical & Aging Resistant
What it is: Manufactured from UL‑approved PA66 (Nylon 6.6) virgin material, with UL94V-2 flame rating.
Why it matters: Engine compartments can reach high temperatures and are often exposed to oil, grease, fuel and coolant. PA66 offers exceptional thermal stability (operating temperature -20°C to +85°C, with high‑temperature variants available up to +150°C), combined with excellent resistance to acids, corrosion and automotive fluids. The material also resists UV degradation and aging, ensuring long‑term mechanical performance without embrittlement.
✋ 4. Smooth & Burr‑Free – Safe for Hands and Cables
What it is: High‑precision injection molding produces a completely smooth surface with no sharp flash, burrs, or rough edges.
Why it matters: Burr‑free construction means you can handle the ties without cutting your fingers during high‑volume assembly. More importantly, the smooth body will not abrade or chafe the cable insulation, preventing electrical shorts and preserving wire integrity over the life of the vehicle.
🧩 5. Anti‑Slip Base – Maximum Grip on the Mounting Surface
What it is: The integrated circular base features a textured anti‑slip design.
Why it matters: When the fir‑tree head is locked into a panel hole, the anti‑slip base contacts the panel surface, distributing clamping force evenly and preventing rotational movement. This adds an extra layer of fixation stability – especially important when the tie is securing a heavy wire bundle or when the assembly is subjected to lateral forces.
📐 6. Multiple Size Options – FT5 / FT6 / FT6‑L / FT8 / FT8‑L / FT10 / FT10‑L
What it is: A full family of sizes covering small to large bundle diameters.
Why it matters: You can choose the exact strap length and locking head geometry to match your specific wiring layout. The FT series includes standard and long‑body variants, giving you flexibility for everything from tight dashboard wire bundles to thick engine harnesses and trunk cabling.
Technical Specifications
Panel Hole Compatibility:Round / Threaded / Blind Hole – Adapts to multiple thicknesses
Tensile Strength (Nominal) Suitable for light to medium bundles Medium bundle capacity Medium‑heavy capacity Heavy‑duty capacity
Key Dimensions (Reference) Compact fir‑tree head Standard fir‑tree head with optional long strap Extended strap versions for larger bundles Maximum strap length for thick harnesses
For complete dimensional drawings (including 7.9±0.3, 17.2±0.5, 26.5±0.2 mm and other critical measurements), please refer to the product dimension chart above.
