MATERIAL:
  • Nut: Alloy steel 30CD4 or 35CD4 in accordance with TR 3791, heat treated for 40-43 HRC.
  • Washer: Alloy steel 25CD4 or 30CD4 in accordance with TR 3791, heat treated for 315-350HV/5.
SURFACE TREATMENT:
  • Nut: Cadmium plate in accordance with EN 2133 class B + Dry film lubricant in accordance with EN 2491.
  • Washer: Cadmium plate in accordance with EN 2133 class B.
CLASSIFICATION: 1100 MPa (at room 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: SD in accordance with NFL 22036 on the area indicated on the drawing.

QUALIFICATION AND ACCEPTANCE CONDITIONS: NF L 22-500.

Contact Alcoa for the diameter/type in manufacturing.
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Item #

B - MIN

C - MIN

E

L - MAX

P - MAX

S - MIN

W - NOM

W - TOL.

Thread

5 PHR 135 M N/A 7.600 mm N/A 6.500 mm N/A 0.600 mm N/A 11.100 mm N/A 6.800 mm N/A 2.000 mm N/A 6.000 mm N/A h12 N/A M5 x 0.8 – 4H5H
6 PHR 135 M N/A 9.000 mm N/A 7.600 mm N/A 0.600 mm N/A 12.000 mm N/A 7.150 mm N/A 2.200 mm N/A 7.000 mm N/A h12 N/A M6 x 1.0 – 4H5H
8 PHR 135 M N/A 12.000 mm N/A 10.900 mm N/A 0.600 mm N/A 14.900 mm N/A 9.000 mm N/A 3.300 mm N/A 10.000 mm N/A h13 N/A M8 x 1.25 – 4H5H
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