Sun Through is a contract manufacturer of customized construction screws. In Particular, we have put a lot of effort into self-drilling screws which are our most impressive product to hit the European and American markets in the past 10 years.
Sun Through has been developing new and innovative products to satisfy a variety of customers from all over the world. Our bi-metal spiral self-drilling screws have an extremely excellent drilling capacities and fast drilling speeds. It can penetrate a steel plate with a thickness of up to 25 mm and 50% faster than regular self-drilling screws. Also, we still manufacture products such as ultra-high strength (class 14.9) bolts and twin-spiral chipboard screws.
We are the top professionals with strong knowledge and advanced skills in heat treatment and bi-metal welding. Sun Through owns heat treatment facilities as direct subsidiaries, therefore, quality is easily controlled through our supply chain. From raw steel to forming, from heat-treating to plating, all of Sun Through’s products are made in Taiwan to ensure quality and stable delivery.
Self-tapping Screws, Self-drilling Screws DIN 7504 / SAE J78, Bi-metal Spiral Point Self-drilling Screws, Sandwich Panel Spiral Point Screws, Spiral Point Reamer Self-drilling Screws, Spiral Point Roofing Screws with EPDM Bonded Washer, Pre Painted Lap Screws, Class 14.9 Ultra-high Strength Bolts, Automobile Wheel Hub Bolts, SUNKIN DIN 912 Hex Socket Head Bolt, Drywall Screws, Chipboard Screws, Heavy Gauge Concrete Anchor Bolt