Cast iron self-tapping screw DIN 939 M30x120-8.8

Product detailed description

The cast iron stud bolt according to DIN 939 with dimensions M30x120 and strength class 8.8 is intended for applications requiring solid connections in blind holes. This screw is made of steel and has no surface treatment, which is suitable for applications where additional corrosion protection is not required.

The screw has a metric thread with a diameter of 30 mm and a pitch of 3.50 mm. The total length of the screw is 120 mm, while the length of the thread at the longer end, intended for screwing into the cast iron, is 66 mm. The shorter thread is intended for mounting the connected part. The width c is 9 mm, the width e is 38 mm and the width a is 4.5 mm, which are critical dimensions for proper fit and functionality in the structure.

The strength class 8.8 indicates that the screw has a yield strength of approximately 640 MPa and a tensile strength of approximately 800 MPa, which makes it suitable for use in mechanically demanding applications where high strength and reliability are required. The screw is suitable for use in mechanical engineering, where strong and precise joints in cast iron components are often required.