... 1018 Standard:ASTM, JIS, BS, AS, ISO, GB, Nonstandard bolt High quality Countersunk Head Nylok machine Screw model numberM3.5-6Brand NamePhoriaOriginal ... supply the Drawing or Photos or Samples to us 1.High quality, competitive price 2.As many factory use stainless steel 200 ... or 400 series instead of stainless steel 304 in the market of China, the performance of Rust resistance ...