12.9
Grade 12.9 bolts: tensile strength is 1200MPa, yield strength is 1080MPa. It is used in applications with high requirements for strength and safety. Such as aerospace field, high-end precision machinery manufacturing.
Grade 12.9 bolts: tensile strength is 1200MPa, yield strength is 1080MPa. It is used in applications with high requirements for strength and safety. Such as aerospace field, high-end precision machinery manufacturing.