There are two types of clevis pins, threaded and unthreaded. Unthreaded clevis pins have a domed head at one end and a cross-hole at the opposite end. Unthreaded clevis pins need a cotter pin to keep the clevis in place. Conversely, threaded clevis pins have a partially threaded shank on one end and the opposite end has a formed head. This formed head has a lip which acts as a stop when the pin is being threaded, and also acts as a flattened tab with a cross hole. The flattened tab allows for ease of installation.

Cotter pins are metal fasteners with two tines that are bent during installation and are used to fasten metal together. Cotter pins are similar to a staple or rivet. Cotter pins are also known as split pins and have flat inner surfaces that touch for most of the pin’s length. This makes the cotter pin appear as a split cylinder. Once the cotter pin is inserted, the two ends are bent apart, which locks the pin in place. Cotter pins come in many sizes, and are manufactured with high quality 416 stainless steel. The specific style of cotter pin manufactured by W.M. Berg is ANSI-B18-8.1-1972 (R 1983}. We will custom engineer to your specifications.

Bolts can act as clevis pins, though a bolt cannot take as much lateral stress as a clevis pin. Clevis pins are designed specially to withstand shearing forces. It is important that clevis pins be closely fitted to the holes in the clevis. The close fit reduces wear and the likelihood of failure of either the pin or the clevis. W.M. Berg manufactures clevis pins from 416 stainless steel, and offers clevis pins in many diameters. The specific style of clevis pin offered by W.M. Berg is ANSI-B18-8.1-1972 (R 1983). We will also custom manufacture clevis pins to fit your individual application.