When choosing roofing screws or Self-Drilling Screws for outdoor applications, many people focus on steel quality and corrosion-resistant coatings while overlooking an important detail: the EPDM washer. The EPDM washer is the component that directly creates a watertight seal between the screw and the material surface. The quality of the washer has a significant impact on […]
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Top 2 Wing Designs on Self-Drilling Screws – Anti-crack performance with enhanced countersunk finishing
In applications involving cement board, wood, and polycarbonate sheets, one of the biggest challenges is material cracking and surface deformation during fastening. To solve this, self-drilling screws are engineered with a “wing” design – a small feature with significant technical impact. Top 2 Wing Designs on Self-Drilling Screws 🔧 How the wing design works The […]
Zen Mark Building Materials Co., Ltd. is honored to be recognized as one of the Top 50 Outstanding Brands in the Asia-Pacific 2024, awarded by the Asia-Pacific Economic Review through its BoldTech Fasteners brand in 2024. Here are some images from the award ceremony and announcement event in Ho Chi Minh City, Vietnam: