Hex bolt

Description: Hexagon Head Screws Threaded Up To The Head 

Type: bolt

Materials: accroding to grades

Grade: 4.8 / 8.8 / 10.8 / 12.9

Surface treatment: zinc plated, black oxide, plain, black zinc nickel plated

Standard: DIN 933 / ASME B18.2.1

Certificate：Material Chemical Certificate, Inspection Report