As the versatile industry standard, these screws combine drilling and fastening in one step for efficient sheet metal work. SINSUN’s versions are made from precision-drawn wire, ensuring consistent point geometry that starts easily and drills cleanly without walking, reducing installer fatigue and improving job site speed.

Designed for superior corrosion resistance in harsh or outdoor environments, such as coastal buildings or chemical processing areas. SINSUN offers grades like 410 and 304 stainless steel, providing lasting integrity where rust compromises safety and aesthetics.

A cost-effective and reliable solution for general indoor construction and drywall-to-steel framing. This common finish provides a base layer of corrosion protection. SINSUN ensures a uniform, high-quality plating that meets industry standards, offering consistent performance for high-volume projects.

Featuring a durable black oxide or phosphate coating, these screws provide a clean, low-glare aesthetic and offer mild corrosion resistance with added surface lubricity. This makes driving smoother and reduces the risk of galling. SINSUN’s process ensures the coating enhances functionality, not just appearance.

Typically identified by a yellow zinc chromate coating, these screws offer a higher level of corrosion resistance than standard zinc plating, suitable for more humid interior environments. The distinct color also allows for easy visual identification on site. SINSUN controls the coating thickness for optimal protection.

Engineered specifically for structural and heavy-duty light gauge steel framing, these screws often feature a larger #3 or #4 drill point and a stronger shank. SINSUN’s framing screws are heat-treated for high shear and tensile strength, providing the reliability needed for critical structural connections.

Combine functionality with visual appeal using Sinsun Color Head screws. The vibrantly colored polymer coating on the pan head allows for easy color-coding, identification, or architectural matching. Beneath the decorative head, the self-drilling screw body ensures quick, tool-efficient installation into metal or wood substrates. Perfect for signage, decorative metalwork, and projects where the fastener's appearance matters as much as its hold.

Sinsun Dacromet-coated screws are designed to work in very harsh conditions. They exhibit high resistance to rust and do not become brittle when exposed to hydrogen. The silver-gray coating can handle a lot of weathering, so it's great for roofing, mounting solar panels, and the underbody of cars. The "Tek" point (self-drilling tip) reliably goes through thicker steel. Sinsun Dacromet is the best choice foachieving ximum durability in demanding outdoor and industrial settings.

Sinsun's Pan Head screws with integrated washers offer a larger bearing surface and enhanced functionality. The washer helps distribute the load, prevents pull-through in softer materials, and can provide a weather-tight seal when paired with a neoprene or EPDM sealing ring. The design of this joint is vital for metal roofing and cladding, as well as any other application that requires a secure, leak-proof connection. Achieving a faster, more reliable seais possible th Sinsun's washer-equipped design.