• IMPRESSIVE SELF-DRILLING SCREWS
    DRILL ONE INCH IN A MINUTE
  • PROFESSIONALISM IN ALL CONSTRUCTION SCREWS
    ENGINEERING-ORIENTED PRODUCTS

Our Features

Taiwan Manufacturer

All the processes are made in Taiwan to maintain quality and stable delivery

Heat Treatment Expertise

Experience in bi-metal welding and heat treatment are our key to zero quality issues. 

Global Service Provider

Service is provided to any places and can meet varied requirements around the world.

Labor-saving Solution

Our innovative products save a lot of labor time and costs on installing and onward maintenance.

Research and Development

Our labratory does various researches and experiments to push the limits of engineering.

ISO-9001 certified

ISO certificate proves our quality-oriented products have well documented traceability.

OUR SERVICES

Drilling and Fastening

We are a professional contract screw maker. We can solve any problems of driiling and fastening.

Advanced Inspection

Sun Through owns many advanced inspection instruments to ensure products' accountibility.

Product traceability

Sun Through provides products with well documented support according to ISO-9001 standard.

ABOUT US

三友璟Sun Through Industrial Co. Ltd. is a Taiwan-based screw manufacturer specializing in self-drilling screws.

Sun Through has been developing new and innovative products to satisfy a variety of customers from all over the world. Specifically, spiral self-drilling screws are our signature patent product that has extremely excellent drilling capacity. The spiral self-drilling screws can penetrate a steel plate with a thickness of up to 30mm, and, more amazingly, save 50% working time than regular self-drilling screws. Also, our ultra high strength (grade 14.9) bolts and Twin-spiral chipboard screws are highly recommended! From raw steel to forming, from heat-treating to plating, all of Sun Through's products are made in Taiwan to ensure quality.

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