Description
M8 Rolled Thread head stud set
Application; Morris 8 1934-1938
Comments
Set contains all 13 studs:
10 * 72mm (SH009R) Morris part number: X17207, 3 * 80mm (SH006R) Morris part number: X15020, Made from Grade 10.9 High Tensile Steel.
Nominal Tensile Strength 1,000 N/mm2 (MPa), Yield Stress 900 N/mm2 (MPa)
The main advantages of Rolled Threads:
Increased tensile strength of the thread plus accuracy and finish. Cold working increases tensile strength at least 30% more than cut threads, which increases the strength of the thread.
Additionally rolled threads improve fatigue strength by 50% to 75%. Rolled threads show no loss of fatigue strength, even when heated up to 250°C, whereas cut threads would.
