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The material of the fastener directly affects its strength, corrosion resistance and service life. Common materials are:
Stainless steel: corrosion-resistant, high-temperature resistant, suitable for automotive exterior parts, especially those exposed to water and moisture.
Carbon Steel: Stronger and moderately priced for most interior fasteners. Often requires galvanizing or other coatings to enhance corrosion resistance.
Aluminum: Lightweight material for parts where weight is a concern, but has lower tensile strength.
Plastics or composites: Commonly used for non-structural components such as interior trim and lightweight applications, with good corrosion resistance but limited strength.
Recommendation: Select fasteners with the right material for the operating environment in which they will be used (e.g., exposure to water, salt, heat, etc.).
Qeepei's current material is POM/PA, which effectively combines many of the advantages of the above materials, and is currently the mainstream car clips.
The dimensions of the fasteners (e.g., diameter, length, and pitch) must be precisely matched to the mating parts. Fasteners that are too large or too small may result in a weak connection or even damage to the parts being joined.
Thread size: Make sure the type and size of the threads match the usage scenario.
Fastener length: Select the appropriate length, neither too long (incomplete contact) nor too short (may result in insufficient tightening force).
Surface treatment not only affects appearance, but also plays a key role in the durability and corrosion resistance of fasteners. Common surface finishes include:
Galvanized: Galvanized fasteners have excellent corrosion resistance and are suitable for automotive parts exposed to moisture and salt water.
Nickel plating: Provides strong corrosion resistance and is especially suited for components exposed to salt spray.
Black Oxide Finish: Commonly used on steel fasteners to provide some corrosion protection and higher resistance to wear.
Anti-corrosion coatings: Provide additional protection against corrosion, but may reduce the strength and durability of the fastener.
The strength and load carrying capacity of a fastener is a central factor in its selection, especially in components that are subjected to high mechanical stress and vibration.
Tensile Strength: Measures the maximum force a fastener can withstand when pulled.
Yield Strength: Indicates the maximum pressure a fastener can withstand before deformation.
Fatigue Strength: The repetitive stress that a fastener can withstand under long-term cyclic loading.
Suggestion: Select fasteners with appropriate strength level according to the usage requirements of the vehicle (e.g. stress on engine, chassis components, etc.).
Brand and supplier reputation are important factors in judging the quality of fasteners. Well-known brands are usually able to provide products that meet industry standards and have better after-sales service and quality assurance.
Certifications and standards: Choosing a supplier that is certified for quality (e.g., ISO 9001) ensures that the product meets international standards and specifications.
Testing and verification: Some suppliers will provide strength test reports or corrosion resistance tests for their products to ensure their quality.
Suggestion: Prioritize suppliers with good reputation, quality assurance and certification, and avoid purchasing low-quality products from unknown sources.
Although Qeepei can't claim to be a well-known supplier, we do manage to be an industry leader with our own factories, which can be customized to meet the various needs of our customers. qeepei's aim is also to put the quality of our products in the first place.
Fasteners should be designed with the overall design needs of the vehicle in mind, including ease of connection and ease of operation. Some innovative fasteners (e.g., quick-release clips, specialized fastening systems) can improve maintenance efficiency or enhance the overall performance of the vehicle.
Quick Installation and Removal: Some fasteners are designed with special features that facilitate quick installation and removal during repair or replacement.
Versatility: For example, some fasteners are designed not only for fixing, but also for enhancing the performance of automotive components through additional functions (e.g. cable management, vibration absorption, etc.).
Recommendation: Select adaptable fasteners with innovative designs based on vehicle usage requirements to improve maintenance convenience and overall vehicle performance.
Consider the balance between cost and durability when selecting fasteners. While high-quality fasteners may cost more, they tend to provide a longer service life, reducing later maintenance and replacement costs.
Balance of price and quality: Try to avoid choosing fasteners that are too inexpensive but whose quality is difficult to guarantee, as they may lead to more frequent failures and higher repair costs.
Life Cycle Costs: The total cost of high quality fasteners over a long period of time may be less than the replacement and repair costs of lower quality fasteners.
Recommendation: Consider the cost of purchasing fasteners versus the cost of using them over the long term, and choose a cost-effective, quality-assured product.
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