Hindley is one of the country’s oldest and largest producers of Cotter Pins. The cotter pins are available in a wide variety of metals and sizes. These pins are manufactured to meet all military and aeronautical standards including MS24665 (AN380 and AN381), MS 9245 (AMS7211), 69272 (AMS7211). Steel cotter pins, Brass, Everdur-Silicon Bronze, Monel and Stainless Steel are stocked from 1/32” to 1/2” diameter. Selected sizes are produced from Aluminum (5056), Phosphor Bronze, and Stainless Steel in T316 and T321. Specific sizes and prices are listed in our current Net Price Book and MS sheets on request. Length of Cotter pin is measured from underneath head to extreme short shank.