Material & High Quality - Made of high quality 65Mn Steel, which provide anti-rust property, wear resistance, oxidation resistance, high strengh, and long service time for indoor and outdoor use.
Feature - The Internal Tooth Star Lock Washers can inflict a spring force between the fasteners and substrate, and create more friction and rotational resistance; The smooth and burr-free surface make them easier and more convenient to install.
Wide Application - Widely used in machinery, furniture, electrical appliances, electronic equipment, cars, sports equipment and industrial production of shock absorption.
Package Included - 50 PCS Internal Tooth Star Lock Washers to meet your daily needs.