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Clevis Pin Dimensions 1
Pin
Size		 Hole
Size2		 Head Recommended Size
Diameter Height Cotter Pin4 Hairpin Cotter Pin5
3/16 3/32 5/16 1/16 1/16 ~ 5/64 3/16 ~ 1/4 x 0.042 x 1
1/4 3/32 3/8 3/32 1/16 ~ 5/64 1/4 ~ 3/8 x 0.080 x 1 3/16
5/16 1/8 7/16 3/32 3/32 ~ 7/64 1/4 ~ 3/8 x 0.080 x 1 3/16
9/64 1/8
3/8 5/32 1/2 1/8 1/8 ~ 9/64 1/4 ~ 3/8 x 0.080 x 1 3/16
7/16 5/32 9/16 5/32 1/8 ~ 9/64 7/16 ~ 3/4 x 0.125 x 2 9/16
1/2 5/32 5/8 5/32 1/8 ~ 9/64 7/16 ~ 3/4 x 0.125 x 2 9/16
9/16 5/32 13/16 13/64 1/8 ~ 9/64 7/16 ~ 3/4 x 0.125 x 2 9/16
5/8 5/32 13/16 13/64 1/8 ~ 9/64 7/16 ~ 3/4 x 0.125 x 2 9/16
3/4 5/32 15/16 1/4 1/8 ~ 9/64 7/16 ~ 3/4 x 0.125 x 2 9/16
7/8 13/64 1 1/32 5/16 3/16 5/8 ~ 1 x 0.148 x 2 15/16
1 13/64 1 3/16 11/32 3/16 5/8 ~ 1 x 0.148 x 2 15/16
1 1/8 1/4 1 3/8 23/64 3/16 ~ 7/32 7/8 ~ 1 1/4 x 0.177 x 3 3/4
1 1/4 1/4 1 31/64 11/32 3/16 ~ 7/32 7/8 ~ 1 1/4 x 0.177 x 3 3/4
1 3/8 1/4 1 3/4 31/64 3/16 ~ 7/32 1 1/4 ~ 1 1/2 x 0.243 x 5 1/8
1 1/2 1/4 2 35/64 3/16 ~ 7/32 1 1/4 ~ 1 1/2 x 0.243 x 5 1/8
1 5/8 1/4 2 35/64 3/16 ~ 7/32 - - -
1 3/4 1/4 2 1/4 35/64 3/16 ~ 7/32 - - -
1 7/8 1/4 2 1/4 35/64 3/16 ~ 7/32 - - -
2 1/4 2 3/8 35/64 3/16 ~ 7/32 - - -
NOTES:
1. Unless noted otherwise, all dimensions are in inches.
2. Hole Size is not in accordance with SAE or ASME standards and refers to the clevis pin's through
    hole size, not mounting hole size.
3. Head Diameter and Height are average sizes rounded to nearest 64th.
4. Larger cotter pin size is preferred; smaller size is acceptable. For 5/16" clevis pins with 1/8"
    hole, use 3/32 ~ 7/64" cotter pin; for 9/64" hole size, use 1/8" cotter pin. SAE/ASME standard
    clevis pins use different cotter pin sizes.
5. Hairpin cotter pin size is specified as shaft diameter (minimum ~ maximum) x wire diameter x
    overall length. Some SAE/ASME standard clevis pins require different hairpin cotter pin sizes.
6. For reference only.