home Products External Tooth Lock Washers

External Tooth Lock Washers

  • Brand:

    T,TGR,XDM,OEM as requirement

  • Brief:

    External Tooth Lock Washer

  • Surface:

    Black, Plain Color,Galvanized, etc.

  • Material:

    stainless steel304,316,316L,317,317L,carbon steel,etc

  • Size:

    1.7-31,#2-1,Custom-made

  • MOQ:

    According to size
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product details

Standard--ANSI/ASME B 18.21.1, UNI 8841A, IFI 532, JIS B 1251
External-Tooth Lock Washers Teeth on the outside edge of the washer bite into the screw head and joint for a tight grip. Use with fasteners that have heads large enough to make contact with the teeth, such as pan, button, and binding head screws.

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
t 0.3 0.3 0.4 0.4 0.5 0.5 0.6 0.7 0.8 0.8
Number of Teeth min 9 9 9 9 10 11 11 12 14 14
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
Screw Thread d 10.5 13 15 17 19 21 23 25 28 31
d min=nominal size 10.5 13 15 17 19 21 23 25 28 31
max 10.77 13.27 15.27 17.27 19.33 21.33 23.33 25.33 28.33 31.39
dc max=nominal size 18 20.5 24 26 30 33 36 38 44 48
min 17.57 19.98 23.48 25.48 29.48 32.38 35.38 37.38 43.38 47.38
t 0.9 1 1 1.2 1.4 1.4 1.5 1.5 1.6 1.6
Number of Teeth min 16 16 18 18 18 20 20 20 22 22
per 1000 units≈kg 1.25 1.6 2.3 2.9 5 6 7.5 8 12 14
For Nominal Thread Diameter M10 M12 M14 M16 M18 M20 M22 M24 M27 M30