"Founded in 1998 at Kaohsiung, Taiwan, William Specialty Industry (WIILIAM) specializes in manufacturing a variety of fastener products.In fastener field, though WILLIAM is regarded as a freshman, with more than 10 years experience and continuous growth has make WILLIAM into a reliable, efficient and professional fastener supplier in the world.?? *Materials: Carbon Steel (sources from CSC Taiwan), Stainless steel and Brass *Product categories: Self Drilling Screws, Self Tapping Screws, Drywall Screws, Chipboard Screws, Particle Screws, Wood Screw, Forming Screws, Machine Screws, Concrete Screws, Deck Screws, Socket Screws and other customized screws. *Dimensions: Size: #2 ~ 3/8 (M2.2 ~ M10) Length: 3/16” ~ 7” (6.35 ~ 180mm) "