1) Material: stainless steel (SUS301, SUS304, SUS316L),
   steel, brass, aluminum
2) Color: galvanized, black, plain
3) Diameter: 1/8" to 2-1/2" (2 - 64 mm)
4) Standard: DIN, ANSI/ASME, ISO9001, JIS, GB
5) Length: 1/4" to 7" (4 - 200 mm)
6) Grade: 4.8 grade, 6.8 grade, 8.8 grade, 10.9 grade
7) Thread: full thread and non-full thread
8) Any specific screws can be provided according to
   customers' requirements (DIY)