M8 x 1 nut (fine pitch)Hight 15mm, particulary suited for connection rods, cylinder heads etc.
Transfers properly torque to weak or damaged threads
Made in Germany!
Turned tool-steel with perfect square face
Especially advised for Ural and Dnepr ohv cylinder head bolts, Dnepr connection rod bolts â here you should not use the split pin but blue locking compound (S4070)!