Cotter Pins (9 Products)

Cotter pins are essential locking fasteners used to prevent nuts, bolts, and other components from loosening in mechanical assemblies. Professionals in automotive repair, industrial maintenance, and heavy machinery rely on these pins to maintain the integrity of fastened joints under vibration and mechanical stress.

Available Sizes and Types

  • Diameters ranging from 1/16 inch to 1/2 inch
  • Lengths from 1/2 inch to 6 inches
  • Stainless Steel 202 material for durability

Selecting the Right Cotter Pin

To choose the correct cotter pin, measure the diameter of the hole in your bolt or shaft to ensure a snug fit. The length should be sufficient to allow the legs to bend back easily around the assembly for a secure lock. Ensure the pin material matches the environment of the application, especially if resistance to rust is required. Always use the proper pliers to bend the legs to avoid damaging the pin's structural integrity.

At ToolBuy, we provide genuine cotter pins from TB Basics. Every purchase comes with a GST invoice, and we offer prompt delivery to locations across India.