SINSUN
1 / 1
Self-drilling screws feature a point shaped like a drill bit. This allows them to drill their own pilot hole and tap threads in a single operations, significantly speeding up installation processes in metal and wood fabrication.
While self-tapping screws cut their own threads, they still require a pre-drilled pilot hole. Self-drilling screws, however, do not require pre-drilling because their tip functions as a drill bit to create the initial hole.
We offer screws manufactured from high-quality materials including Zinc Plated Carbon Steel for superior indoor durability, and Stainless Steel for advanced rust and corrosion resistance in outdoor settings.
Hex washer head self-drilling screws are ideal for heavy-duty metal-to-metal connections. The built-in washer distributes weight and load over a wider area, preventing damage to the material and ensuring a secure, tight hold.
Generally, it is not recommended to reuse self-drilling screws, especially in metal applications. The drilling tip dulls after the initial installation, which can compromise the cutting efficiency and structural integrity of the fastener upon reinstallation.
