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The weight of plastic fasteners is approximately 30% of that of metal, which can significantly reduce the overall weight of the equipment and is suitable for fields such as aerospace and automotive where weight sensitivity is a concern.
Materials such as PEEK and PVDF have excellent resistance to chemical corrosion and can be used for a long time in environments with strong acids and strong bases. The PVDF material can last for more than ten years in corrosive workshops.
Materials such as nylon do not conduct electricity and are widely used for fixing PCB circuit boards to avoid short-circuit risks.
Suitable for electromagnetic compatibility requirements of precision instruments (such as optical equipment).
Some engineering plastics (such as POM) can maintain their performance within the range of -30â to 120â, while fluoropolymers (such as PTFE) have a temperature resistance of up to 260â.
Exhibits minimal deformation under long-term loading, making it suitable for scenarios with high durability requirements such as automotive interiors.
Suitable for food contact or medical equipment (such as an alternative solution of 316L stainless steel).
Compared to metal parts, plastic fasteners have lower production costs in mass production and do not require rust prevention treatment.
Automotive
Used for the fixation of body, interior and exterior trims, chassis and other components, such as push-in fasteners (anchor-type fasteners, Christmas tree fasteners) to achieve rapid assembly, and plastic nuts in combination with bolts to complete detachable connections.
New Energy Vehicles
Fasteners made of PEEK material (such as bearings and gears) can reduce weight by 40%, and are suitable for battery modules and motor components of new energy vehicles.
Waterproof Modules
The plastic end bolts are both detachable and waterproof, and are suitable for engine compartments or electronic and electrical modules.
Construction
Alternative metal fasteners are used in humid environments (such as basements, coastal buildings) to avoid rusting problems.
Cable Management
Plastic cable ties are used for cable management or temporary structure fixation, providing flexible solutions in disaster relief and event setup.
Medical
PEEK material is used for artificial spinal columns, joints and other implants. It has better biocompatibility than metals and does not affect medical imaging examinations.
Aerospace
PEEK fasteners are resistant to high temperatures and lightweight, and are used in aircraft structures or cabin components.
Semiconductor
Anti-static PEEK profiles are used for precision components such as wafer carriers in semiconductor manufacturing.
Q What are the main advantages of plastic fasteners over metal fasteners?
Plastic fasteners offer several key advantages over metal alternatives, including significantly lower weight (approximately 30% of metal), excellent corrosion resistance, electrical insulation, non-magnetic properties, and lower production costs in mass manufacturing. They also eliminate the need for rust prevention treatments.
Q Which plastic materials are best suited for high-temperature environments?
For high-temperature applications, PTFE (fluoropolymer) is the top choice, offering temperature resistance of up to 260â. PEEK is also highly suitable for elevated temperatures and is widely used in aerospace and automotive sectors. POM engineering plastic performs reliably within the range of -30â to 120â.
Q Are plastic fasteners suitable for medical and food-contact applications?
Yes. Plastic fasteners produce no metal contamination, making them ideal for food-contact equipment and medical devices. PEEK material in particular is used for implants such as artificial spinal columns and joints due to its superior biocompatibility and its non-interference with medical imaging examinations such as MRI.
Q How do plastic fasteners perform in chemically aggressive environments?
Materials such as PEEK and PVDF demonstrate outstanding resistance to strong acids and strong alkalis. PVDF fasteners, for example, can maintain structural integrity for more than ten years in corrosive industrial workshops, making them a reliable long-term solution where metal fasteners would fail due to corrosion.
Q Can plastic fasteners be used in aerospace and semiconductor industries?
Absolutely. PEEK fasteners are widely adopted in aerospace applications due to their high-temperature resistance and lightweight characteristics, suitable for aircraft structures and cabin components. In semiconductor manufacturing, anti-static PEEK profiles are used for precision components such as wafer carriers, where contamination control is critical.
Q What types of plastic fasteners are commonly used in the automotive industry?
In the automotive sector, common plastic fasteners include push-in fasteners (such as anchor-type and Christmas tree fasteners) for rapid assembly of body panels and trims, plastic nuts combined with bolts for detachable connections, and waterproof end bolts for engine compartments or electrical modules. PEEK-based components are also increasingly used in new energy vehicle battery modules and motor assemblies.
