Mild Steel Cotter Pins
Originally a ‘belt and braces’ device for industry for the prevention of unscrewing nuts from shafts and for restraining errant Clevis pins, the Cotter Pin has developed into numerous designs for newer applications in engineering.
Split cotter pins are crafted from robust wire, forming a semi-circular cross-section for added strength. Each pin features two separate legs connected at one end by a round head. When used, the pin is inserted into a pre-drilled hole—commonly found in shafts or bolts—until the head sits flush against the surface.
Pinstructure offers Mild Steel Cotter Pins in Metric and Inch sizes, Bright Zinc Plated or Self-colour.
- Metric sizes: 1mm to 13mm in diameter, and lengths of 12mm to 200mm.
- Inch Sizes: 1/32” to 5/8” diameter, and lengths of ¼” to 9” as standard.
Mild Steel Split Cotter Pins are manufactured to the following international standards: ISO1234, BS1574 and DIN94.
Additional sizes of Mild Steel Split Cotter Pins available, please contact us for further information.
