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DIN 137 A

DIN 137  A,  Curved Spring Washer Standard

DIN 137 type A curved spring washer standard
Size d1 d1 max d2 s h min h max
M2 2.2 2.45 4.5 0.3 0.5 1
M2.5 2.8 3.05 5.5 0.3 0.55 1.1
M3 3.2 3.5 6 0.4 0.65 1.3
M3.5 3.7 4 7 0.4 0.7 1.4
M4 4.3 4.6 8 0.5 0.8 1.6
M5 5.3 5.6 10 0.5 0.9 1.8
M6 6.4 6.76 11 0.5 1.1 2.2
M7 7.4 7.76 12 0.5 1.2 2.4
M8 8.4 8.76 15 0.5 1.7 3.4
M10 10.5 10.93 18 0.8 2 4

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