Attachment member

Attachment member comprises a deformed plate part (1a, 11a, 21a, 31a) and a connecting part (1, 11, 21, 31), said deformed plate part has an axially extending throughbore (3, 13, 23, 33) having an axis and arranged to receive said connecting part (1, 11, 21, 31), said connecting part (1, 11, 21, 31) having a planar first contact surface (4, 14, 24, 34) abutting a planar third contact surface on said deformed plate part and an attachment section (6, 16, 26, 36) extending through said throughbore (3, 13, 23, 33) and a second contact surface (5, 15, 25, 35) on said connecting part located opposite said first contact surface, said deformed plate part having a circumferential collar (7, 17, 27, 37) encircling said throughbore and projecting perpendicularly from the third contact surface of said deformed plate part, said collar having a height (H) extending from said third contact surface generally parallel to the axis of said throughbore, and one of said first and second contact surfaces having an annularly shaped recess extending parallel to the axis of said throughbore and having a base extending transversely of the axis of said throughbore for receiving said collar, said recess having a depth (T) extending parallel to the axis of said throughbore between the one of said first and second contact surfaces and the base of said recess and the depth (T) corresponds at least to the height (H) of said collar.