Internal teeth serrated lock washers

  • Brand:

    T,TGR,XDM,OEM as requirement
  • Brief:

    DIN 6797 J, DIN 6798 J , Serrated Lock Washers
  • Surface:

    Black, Plain Color,Galvanized, etc.
  • Material:

    stainless steel304,316,316L,317,317L,carbon steel,etc
  • Size:

    1.7-31,Custom-made
  • MOQ:

    According to size
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product details

Internal tooth lock washers have teeth along the inside diameter. They prevent nut and bolt heads from loosening. Serrated lock washers have serrations along the outside diameter that prevent loosening and increase the washer s locking power.

Screw Thread d 1.7 2.2 2.7 3.2 3.7 4.3 5.3 6.4 7.4 8.4
d min=nominal size 1.7 2.2 2.7 3.2 3.7 4.3 5.3 6.4 7.4 8.4
max 1.84 2.34 2.84 3.38 3.88 4.48 5.48 6.62 7.62 8.62
dc max=nominal size 3.6 4.5 5.5 6 7 8 10 11 12.5 15
min 3.3 4.2 5.2 5.7 6.64 7.64 9.64 10.57 12.07 14.57
Number of Teeth min 7 7 7 7 8 8 8 9 10 10
t 0.3 0.3 0.4 0.4 0.5 0.5 0.6 0.7 0.8 0.8
per 1000 units≈kg 0.02 0.03 0.045 0.06 0.11 0.14 0.28 0.36 0.5 0.8
For Nominal Thread Diameter M1.6 M2 M2.5 M3 M3.5 M4 M5 M6 M7 M8