hilti fasteners Germany hilti models hilti prices

hilti fastener anti-loosening washers are a type of fastener with a flat circular ring shape. Placed between the bearing surface of bolts, screws, or nuts and the surface of connected parts, they increase the contact surface area of the connected parts, reduce pressure per unit area, and protect the surfaces of connected parts from damage; another type of elastic washer can also prevent nuts from loosening. The anti-loosening washer consists of two pieces. Its unique embedded structure changes the traditional method where anti-loosening washers mainly rely on friction, instead adopting the most advanced international anti-loosening technology, utilizing the two washers