How can you source reliable self-drilling screws that eliminate pre-drilling steps and reduce assembly time on metal roofing projects?
Chan Chin C.'s ST5.5 self-drilling screws with hex washer head eliminate the need for pre-drilling, directly penetrating metal surfaces while creating secure fastening points. Our C-1022 stainless steel construction resists corrosion from weather exposure, ensuring long-term durability on roofing installations. With 30+ years of manufacturing expertise and bulk order capabilities starting at 100M units, we deliver consistent quality that reduces rework and accelerates your project timelines. Contact us today for samples and competitive pricing tailored to your roofing production volume.
As a Taiwan-based manufacturer with over 30 years of fastening expertise, Chan Chin C. supplies self-drilling screws to global OEM producers, construction contractors, and distribution networks. Our self-drilling fasteners are available in bulk orders starting at 100M units per order (USD 5,000 minimum), with flexible branding and buyer's label options to support your production requirements. Backed by ISO 14064-1:2018 and ISO 14067 environmental certifications, we ensure sustainable manufacturing practices while maintaining the stable quality and continuous innovation your business demands.


