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ECROU FS DE SECURITE TOUT METAL DIN 980 FS
  • Modèle 0764
Acier
doux		 Acier
8		 Acier
10		 Acier
12		 Zingue
blanc		 Zingue
bichro		 Inox
A2		 Inox
A4		 Nylon Laiton Cuivre Alu Acier
Hte rés.
  X x x X   x x          
Ecrou FS Ecrou FS

Ecrou FS, données techniques :

Homologué suivant norme DB AG : BN 205 107 -01 form A / STW 508.51.022 form B .

Design acc. to :
DIN EN ISO 7042, DIN EN 1664, DIN EN 1667, DIN 980, DIN 6925 (old type)
Mechanical properties:
DIN EN ISO 2320 (DIN EN 20898-2/ DIN EN ISO 898-6)
Surface coatings:
DIN EN ISO 4042 – galvanic surface coatings (also Cr 6-free), Delta-Tone, Zinc-Iron, Zinc-Nickel, Hot Dip galvanized, Geomet, Delta-Protect, QPQ, Phosphate, Dacromet, etc.

d h s e min. Prevailing torque (Nm)
1st application
max		 1st unscrewing
min.		 15th unscrewing
min
M 5 5 8 8,79 1,6 0,29 0,2
M 6 6 10 11,05 3,0 0,45 0,3
M 8 8 13 14,38 6,0 0,85 0,6
M 10 10 16 17,77 8,0 1,5 1,0
M 10 10 17 18,90 8,0 1,5 1,0
M 12 12 18 20,03 12,0 2,3 1,6
M 12 12 19 21,10 12,0 2,3 1,6
M 14 14 21 23,36 16,0 3,3 2,3
M 14 14 22 24,49 16,0 3,3 2,3
M 16 16 24 26,75 25,0 4,5 3,0
M 18 18 27 29,56 28,0 6,0 4,2
M 20 20 30 32,95 30,0 7,5 5,3
M 22 22 32 35,72 40,0 9,5 6,5
M 24 24 36 39,55 45,0 11,5 8,0
M 27 27 41 45,63 50,0 13,5 10,0
M 30 30 46 50,85 60,0 16,0 12,0
M 33 33 50 55,37 70,0 18,0 14,0
M 36 36 55 60,79 75,0 21,0 16,0
M 39 39 60 66,44 90,0 23,0 18,0
M 42 42 65 72,61 100,0 30,0 20,0
M 48 48 75 83,91 130,0 40,0 25,0
M 56 56 85 95,07 160,0 50,0 30,0
M 64 64 95 106,37 200,0 60,0 35,0

Prevailing Torques: The adjusted prevailing torques are valid for bolts class 6g zinc plated. After the 5th loosening, the prevailing toque remains constant.
Deviations from these values may occur as a result of different surface coatings.

The stated locking torques signify an ideal-typical connection and don't necessarily apply to an actual screwed connection.
Calculation verification necessary! (VDI 2230-2003)
FS Lock-nuts made of austenitic steels may be employed without the use of a lubricant. They are plated with a specific surface coating that prevents the nuts from pitting onto the screws. This coating has been approved by the DB AG.
Important note: Fast and without interruption tighten the screw with a screw driver at no more than 20-30 RPM. An impact screw driver is hereby not ideal.