PCA6*14 Stainless Steel Round Head Hexagonal Self Tapping Screw

Advantages
1.​​High-Strength Fastening​​
•Made from stainless steel or alloy steel with high tensile strength, ensuring secure connections for engine blocks, chassis, and other critical components to prevent loosening.
•Precision thread design ensures tight engagement and resistance to vibration-induced loosening.
2.Exceptional Durability​​
•Withstands high temperatures (up to 800°C+) and extreme pressure, making it ideal for harsh engine conditions.
•Resists oxidation, corrosion, and degradation from moisture, oil, and chemicals, extending service life.
3.​​Leak-Proof Sealing​​
•Works with specialized gaskets or tapered thread designs to effectively seal combustion chambers and fluid pathways, preventing gas or liquid leaks.
​​Product Features​​
•Material & Manufacturing​​: Cold-forged austenitic stainless steel with optional zinc plating or passivation for enhanced strength and aesthetics.
•Versatile Sizing​​: Available in various metric/imperial sizes (e.g., M6-M20) with fine/coarse thread options, compatible with mainstream vehicles (Japanese, German, etc.) and aftermarket modifications.
•Precise Torque Control​​: Pre-set torque coefficients ensure even load distribution during installation, preventing over-tightening (breakage) or under-tightening (leaks).
​​Cost Efficiency​​
•Economical & Long-Lasting​​: Lower cost than inferior screws requiring frequent replacement; resists rust and deformation, reducing long-term maintenance expenses.
•​​Risk Mitigation​​: Prevents catastrophic failures (e.g., engine cylinder scoring, head gasket damage) caused by fastener failure, saving costly repairs.
​​Applications​​
•Vehicle Compatibility​​: Cars, SUVs, commercial vehicles (gasoline/diesel/EV battery systems).
•Ideal for​​: Cylinder heads, turbochargers, exhaust pipes, suspension systems, and other high-stress components.
•Target Users​​: 4S shops, repair centers, and DIY enthusiasts; compatible with professional tools or manual installation.

Factory Pictures:

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