MATERIAL: Alloy steel 25CD4 or 30CD4 in accordance with TR 3791, heat treated for 40-43 HRC.

SURFACE TREATMENT: Cadmium plate 5µm mini in accordance with EN 2133 + dry film lubricant in accordance with EN 2491

CLASSIFICATION: 900 Mpa (at ambient temperature) / 235°C.

THREAD: MJ in accordance with ISO 5855-2

TOLERANCES OF FORM AND POSITION: In accordance with ISO 8788.

MARKING: MJ in accordance with EN 2424 – Category F, on the area indicated on the drawing.

QUALIFICATION AND ACCEPTANCE CONDITIONS: NFL 22500.