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MATERIAL: Alloy steel 25CD4, 35CD4, 30CD4 or equivalent, heat treated for 40-43 HRC.

SURFACE TREATMENT: Cadmium plate in accordance with EN 2133 class C + Dry Film Lubricant in accordance with EN 2491, thickness not specified.

CLASSIFICATION: 1100 MPa (at room temperature) / 235 °C.

THREAD:
  • PROFILE: ISO M in accordance with NF L 05-220.
  • TOLERANCES: in accordance with NF L 05-224.
TOLERANCES OF FORM AND POSITION: In accordance with ISO 8788.

MARKING: - SD in accordance with NF L 22-036 on the area indicated on the drawing.

QUALIFICATION AND ACCEPTANCE CONDITIONS: NF L 22-500.

OPTIONS:
  • Countersunk rivet holes as indicated on the drawing. Add code K after the reference (example:5SMR3209MK).
  • Metal cap: Add code B after the type of the nut (example: 5SMRB3209M).
Contact Howmet for the diameter/type in manufacturing.
Unit of Measure

Thread Type

 N/A Metric

Configuration 1

 N/A Corner

Configuration 2

 N/A Fixed

Configuration 3

 N/A Miniature

Lock

 N/A Crimp Lock

Simplified Material

 N/A Alloy Steel

Strength

 N/A 160KSI - 1100Mpa

Temperature

 N/A 450°F - 235°C

Specific Material

 N/A Alloy Steel 25CD4 or 30CD4 in accordance with TR3791, heat treated for 40-43 HRC

Thread

 N/A M4 x 0.7 – 4H5H

Additional Information

 N/A Remove sharp edges 0,1 – 0,4