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:

• PROFILE: ISO-M in accordance with NFL 05220.
• TOLERANCES: in accordance with NFL 05224.

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

MARKING: - in accordance with NFL 22036 on the area indicated on the drawing.

QUALIFICATION AND ACCEPTANCE CONDITIONS: NFL 22500.

Contact Howmet for the diameter/type in manufacturing.