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Split Cotter Pins

Circlips generally to dimensions according to DIN 94 /ISO 1234 and BS 1574 ..

Nom Size
Hole Dia
d(Pin Dia) a (Prong ext) b (Eye Length) c(Eye OD) l (range)
mm mm mm mm) mm mm
0,8 0,7 1,6 2,4 1,2  -  1,4 6   -  12
1,0 0,9 1,6 3 1,6  -  1,8 6   -  12
1,2 1,0 2,5 3 1,7  -  2,0 6   -  40
1,6 1,4 2,5 3,2 2,4  -  2,8 6   -  40
2,0 1,8 2,5 4,0 3,2   -  3,6 6   -  50
2,5 2,3 2,5 5,0 4,0   -  4,6 8    -   50
3,2 2,9 3,2 6,4 5,1   -  5,8 8    -   63
4,0 3,7 4,0 8,0 6,5   -  7,4 16   -  100
5,0 4,6 4,0 10,0 8,0    -  9,2 20    -   100
6,3 5,9 4,0 12,6 10,3   -  11,8 25    -   125
8,0 7,5 4,0 16,0 13,1   -  15, 40    -   140
10,0 9,5 6,3 20,0 16,6   -  19,0 50   -  140
13,0 12,4 6,3 26,0 21,7   -  24,8 71   -  140


BS 1574 covers Ferrous and no ferrous split cotter pins . In this standard the size of the pins are designated by the hole size in which the pin is located. The pin is selected by stating the size and length and material.
Cotter pins are made from low carbon steel zinc plated or equivalent..

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Last Updated 24/01/2013