Anco Lock Nuts

The Anco style is a self-locking nut with a Stainless Steel ratchet pin that has a unique controlled lock indention. This ratchet pin slides along the threads as the nut is spun onto the bolt and prevents the nut from backing off. One benefit to using an Anco style lock nut is that the ratchet pin can be bent back so that the nut can be easily removed if needed. Available in Heavy Duty A563/ 2H, UNC and Metric Thread in Plain, zinc, cadmium, hot dip galvanized finishes.