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manufacturers and suppliers of Split-pins, Spring washers and Spring lock washers. - Precision Industrial Components, Rajkot.

Cotter Pins


A split pin, also known in the U.S. usage as a cotter pin or cotter key, is a metal fastener with two tines that are bent during installation, similar to a staple or rivet. Typically made of thick wire with a half-circular cross section, split pins come in multiple sizes and types.

Split pins are frequently used to secure other fasteners, e.g. clevis pins, as well as being used in combination with hardboarddiscs as a traditional joining technique for teddy bears. A common application of this is when used to secure a castellated nut. One problem with this type of use is that the castles on the nut must line up with the hole in the mating part so that the split pin can be installed. When the nut is torqued properly, but the holes still do not line up, it is preferable to overtighten the nut than undertighten it.

Split pins may be used in some applications as low-tech shear pins.

Half-round wire that are folded over onto themselves with a loop at one end, which provides a head. Cotter Pins anchor various assemblies by being inserted through a drilled hole in a shaft or bolt and spreading the points to hold the assembly in position.

A split cotter inserted through holes in two or more pieces and bent at the ends to fasten the pieces together.

A split pin secured, after passing through holes in the parts to be attached, by spreading the ends.

A cotter having a split end that is spread after being pushed through a hole to prevent it from working loose.

A metal pin used for fastening; the split ends which project beyond the pin hole are bent back from the axis of the pin.

A pin with two ends originally positioned together that are fitted through a hole and then bent backwards to lock the pin in place. Cotter pins can be used to lock clevis pins or certain styles of washers.

A tapered pin threaded at the smaller end and secured by a nut after insertion.

Specifications:

- Din 94

- IS 549

- BS 574

Nominal Size -> Dimension 1 1.2 1.6 2 2.5 3.2 4 5 6.3 8 10 13 16
d Max. 0.9 1 1.4 1.8 2.3 2.9 3.7 4.6 5.9 7.5 9.5 12.4 15.4
Min. 0.8 0.9 1.3 1.7 2.1 2.7 3.5 4.4 5.7 7.3 9.3 12.1 15.1
a Max. 1.6 2.5 2.5 2.5 2.5 3.2 4 4 4 4 6.3 6.3 6.3
Min. 0.8 1.2 1.2 1.2 1.2 1.6 2.0 2.0 2.0 2.0 3.1 3.1 3.1
b Max. 3 3 3.2 4 5 6.4 8 10 12.6 16 20 26 32
c Max. 1.8 2 2.8 3.6 4.6 5.8 7.4 9.2 11.8 15 19 24.8 30.8
Min. 1.6 1.7 2.4 3.2 4 5.1 6.5 8 10.3 13.1 16.6 21.7 27

IS 549 : 2005

ISO 1234 : 1997

Table 1 - Dimensions (Lengths /: See Table 2)

Dimensions in Millimetres

Nominal SizeTM 8.6 8.6 1 1.2 1.6 2 2.6 -2.2
d Max. 0.5 0.7 0.9 1.0 1.4 1.8 2.3 2.9
Min. 0.4 0.6 0.8 0.9 1.3 1.7 2.1 2.7
a Max. 1.6 1.6 1.6 2.50 2.50 2.50 2.50 3.2
Min. 0.8 0.8 0.8 1.26 1.26 1.26 1.26 1.6
b - 2 2.4 3 3 3.2 4 5 6.4
c Max. 1.0 1.4 1.8 2.0 2.8 3.8 4.6 5.8
Min. 0.9 1.2 1.6 1.7 2.4 3.2 4.0 5.1
corresponding diameters bolts Over - 2.5 3.5 4.5 5.5 7 9 11
To 2.5 3.5 4.5 5.5 7 9 11 14
Clevis Pins Over - 2 3 4 5 6 8 9
To 2 3 4 5 6 8 9 12

Nominal SizeTM 4 5 6.3 8 10 13 16 20
d Max. 3.7 4.6 5.9 7.5 9.5 12.4 15.4 19.3
Min. 3.5 4.4 5.7 7.3 9.3 12.1 16.1 19.0
a Max. 4 4 4 4 6.30 6.30 6.30 6.30
Min. 2 2 2 2 3.15 3.15 3.15 3.15
b - 8 10 12.6 16 20 26 32 40
c Max. 7.4 9.2 11.8 15.0 19.0 24.8 30.8 38.5
Min. 6.5 8.0 10.3 13.1 16.6 21.7 27.0 33.8
corresponding diameters bolts Over 14 20 27 39 56 80 120 170
To 20 27 39 56 80 120 170 -
Clevis Pins Over 12 17 23 29 44 69 110 180
To 17 23 29 44 69 110 180 -

Packaging Process

Step - 1

Step - 1

Precise cotter pin Raw

Step - 2

Step - 2

Precise cotter pin

Step - 3

Step - 3

Precise cotterpin packing machine

Step - 4

Step - 4

precise cotter pin 200 nos

Step - 5

Step - 5

Precise cotterpin 200 nos sealing process

Step - 6

Step - 6

Precise cotter pin 200 nos packing

Step - 7

Step - 7

Precise cotter pin box packing

Step - 8

Step - 8

Precise cotter pin box packing

Step - 9

Step - 9

Precise Plain Washer

Our customers are special to us. We prefer giving them good materials properly packed, so when the material reaches their destination, no damage is done. Hence the photograph shows our quality packing. Below is the list of material packed in 'Precise' box of cotter pins.


SIZE PIECES IN PACKET PIECES IN BOX
1/16 X 1/2" 200 NOS 10000 PCS /BOX
1/16 X 3/4" 200 NOS 10000 PCS /BOX
1/16 X 1" 200 NOS 8000 PCS/BOX
3/32 X 3/4" 200 NOS 5000 PCS/ BOX
3/32 X 1" 200 NOS 4000 PCS/ BOX
3/32 X 1.1/4" 200 NOS 3200 PCS/ BOX
3/32 X 1.1/2" 200 NOS 2400 PCS/ BOX
1/8 X 3/4" 200 NOS 3000 PCS / box
1/8 X 1" 200 NOS 2400 PCS/ BOX
1/8 X 1.1/4" 200 NOS 2400 PCS/ BOX
1/8 X 1.1/2" 200 NOS 2000 PCS/ BOX
1/8 X 1.3/4" 200 NOS 1600 PCS/BOX
1/8 X 2" 200 NOS 1600 PCS/BOX
1/8 x 2.1/2" 200 NOS 1600 PCS/BOX
1/8 X 3" 200 NOS 1400 PCS/ BOX
5/32 X 1" 200 NOS 2000 PCS/BOX
5/32 X 1.1/4" 200 NOS 1600 PCS/BOX
5/32 X 1.1/2" 200 NOS 1200 PCS/BOX
5/32 X 1.3/4" 200 NOS 1200 PCS/ BOX
5/32 X 2" 200 NOS 1000 PCS/ BOX
5/32 X 2.1/2" 200 NOS 800 PCS/BOX
5/32 X 3" 200 NOS 800 PCS/BOX
3/16 X 1.1/4" 200 NOS 1000 PCS / BOX
3/16 X 1.1/2" 200 NOS 800 PCS/BOX
3/16 X 2" 200 NOS 600 PCS/BOX
3/16 X 2.1/2" 200 NOS 600 PCS/BOX
3/16 X 3" 200 NOS 400 PCS/BOX
3/16 X 3.1/2" 200 NOS 400 PCS/BOX
7/32 X 2.1/2" 200 NOS 400 PCS/BOX
7/32 X 3" 200 NOS 400 PCS/BOX
1/4 X 1.1/4" 200 NOS 600 PCS/BOX
1/4 X 1.1/2" 200 NOS 600 PCS/BOX
1/4 X 2" 200 NOS 400 PCS/BOX
1/4 X 2.1/2" 200 NOS 400 PCS/BOX
1/4 X 3" 100 NOS 300 PCS/BOX
1/4 X 3.1/2" 100 NOS 300 PCS/BOX
1/4 X 4" 100 NOS 300 PCS/BOX
1/4 X 4.1/2" 100 NOS 300 PCS/BOX
1/4 X 5" 100 NOS 200 PCS/BOX
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