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CUSTOMIZED

We are acknowledged as the most demanded manufacturer and supplier of Automobile Fasteners widely used in automobile industries.

The offered fasteners are manufactured using quality tested raw material and progressive technology in line with industry norms.
Our provided fasteners are examined on diverse quality standards by our quality controllers. Moreover, these fasteners are provided at nominal prices to our clients.


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  • Product Performance
  • Exceed Minimum Specifications for tolerance
  • Risk Analysis based on materials, geometry and usage to advise customers on the best solution.
  • Extensive construction industry experience working with distributors for major brands and construction component manufacturers.
 
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Earthquake Resistant Fasteners


Our fasteners have been tested and in Japan as level 3 earthquake safe and we have been awarded the National provincial certification in Japan for this product range. This has involved working with the government to go through the structural testing process for Japanese construction.

The quality of our fasters can withstand and earthquake of 6-7 on the Richter scale.

We achieve this remarkable resistance and resilience through our special production techniques and our uniquely designed heat treatment process which has allowed our fasteners to absorb 1.5 times the force of normal fasteners without breaking.

The top of the screw, the body and all parts have been realistically tested to absorb the torsional forces and shearing forces that nay occur during earthquakes. They withstand these forces without shearing and can bend by up to 90 degrees without breaking under loading.

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Level 1 Certification

This is the most basic level of earthquake resistance allowed by the Japanese government and is the entry level specification fasteners.

Houses at this level will not immediately collapse if they encounter an earthquake of 6-7 ( Similar to the Kobe earthquake ), but they will require extensive renovation and repair after such an event and may not be habitable again.

This is the level of protection for the most basic housing.

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Level 2 Certification

This level of earthquake resistance provides 1.25 times the protection of the level 1 standard.

Buildings with this level of earthquake resistance can withstand the force of a 6 -7 earthquake without collapsing.

After a certain amount of restorative work they should be habitable again.

Schools, and other community buildings run by the government must all attain this level of certification.

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Level 3 Certification

This level of earthquake resistance is 1.5 times the protection of level 1.

This is the highest level of earthquake resistance certification for Japanese construction.

At this level, building will only suffer very superficial damage and after light repairs will be immediately habitable again.

This level of certification is required for Police Stations, Fire Department and other emergency service structures throughout Japan.

Metal Roofing Industry Fasteners


Fasteners for the metal roofing industry: As we tested in the past and current practice with metal roofing fasteners, illustrating the use of EPDM washers for their superior weathering resistance and self-drilling and tapping fasteners for faster installation and increased corrosion resistance.

Kuolien is the only facility in Taiwan to develop and use an auto-assembly machine capable of assembling rubber washers, metal washers and screws in one step. Our machine drastically increases output capability with yield rates of up to 100 PPM.

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Corrosion Resistance

Extreme environmental resistance and specialized coatings for customer requirements including powder paint, RUSPERT etc

Accurate Dimensions

High QC standards and batch inspection via human and automated optical and digital inspections.

Smooth Edges

Vital for automated assembly manufacturers. Burr on your screws can delay your manufacturing so making sure of the smoothness of all the screws is vital to maintaining stable quality of production.

Cost Management

Advise customers on the most efficient and cost effective manufacturing process and materials to meet their performance requirements whilst also ensuring costs are minimized.

  • Kuolien, a 30 years fastener manufacturer in Taiwan, is adept at manufacturing bespoke and standard screws/bolts for all kind of materials in low carbon steel 1006~1022 /middle carbon 1035, 35ACR at class 8.8/high carbon and especially focus on stainless SUS300,400,600 series.
  • Kuolien is the only facility in Taiwan to develop and use an auto-assembly machine capable of assembling rubber washers, metal washers and screws in one step. Our machine drastically increases output capability with yield rates of up to 100 PPM.

QUALITY ASSURANCE


Kuolien has earned the recognition and been certified by Japan Government as well as an accredited supplier for Japanese infrastructure. Kuolien is one of only two fastener suppliers in Taiwan to be certified by the Ministry of Land, Infrastructure, Transport and Tourism in Japan.
Fasteners for the metal roofing industry : As we tested in the past and current practice with metal roofing fasteners, illustrating the use of EPDM washers for their superior weathering resistance and self-drilling and tapping fasteners for faster installation and increased corrosion resistance.

Get In Touch With
An Expert______

We are specialized in manufacturing each and every type of automobile screws. Send us drawings, samples and we will develop the screw according to your requirement.

The plating we will provide comes in the criteria of automobile industries.


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