hi dears.this is mohsen.i am working for caspian company.we are looking for stainless steel ring-grooved lock bolt. we send you the pictures and diameter of the stainless steel ring-grooved lock bolt which we need.we need 10000 of it.would you plz let us know if you have it and the price.my e.mail add. i will be so gratefull to receive your response urgently.our ofdfice is in tehran iran.thanks a lot for your able assistance.