Product Name: Cylindrical Head Internal Hexagonal Bolt
Dimensions: M6-M48
Levels: 4.8-12.9
Material: 40Cr/35Crmo
Surface treatment: black
Standard: GB/T 70.1-2008
Certificate: ISO 9001
Usage: The internal hexagonal bolt connection has high strength and is widely used in mechanical equipment construction, ship construction, machine tools and their ancillary components.