1.Standard: DIN, ASTM,JIS,BS,AS,ISO,GB, Nonstandard bolt(according to your order),etc.
2.Material: Carbon steel
3.Grade: GR.4.8-12.9
4.Finish: Blue ruspert
5.Size: 1/4″, 3/16″ (length: 1-1/4″ to 5″)