FM Metric Series Ball Joint

Body and ball stud Low carbon steel.. Case hardened.
Inner retaining ring Hard drawn spring steel to SAE1070 or equivalent

Protective Finish:
Body and ball stud Zinc plated, de-embrittled and passivated.
Inner retaining clip Self-color. The assembly is lubricated.

  • Metric equivalent to SAE J 490 style 4.
  • Ball stud is retained by a hardened and tempered steel ring resulting in high pull-out load. There is an optional gaiter available to help resist dirt ingress.
  • If a fitted gaiter is required then the suffix “G should be added to the part number. E.g FMG10.
  • The FM Ball Joint is ideal for severe wear conditions and is also resistant to vibration and high shock loading.
  • Inch sizes of this range are also available.


Part No Thread ISO A BCDEFHJKLMQBall Dia Ø Weight Per
100 in Kgs
FM 6M6 x 1.031.424.612.77.09.511.111.95.5231.71014.27.752.3
FM 8M8 x 1.2536.128.414.27.01112.713.56.037.31317.58.743.4
FM 10M10 x 1.543.335.019.08.01315.917.56.9147.61322.210.596.5
FM 12M12 x 1.7560.949.225.49.51719.022.29.4660.31728.614.1013.7