The invention relates to metal protectors for threaded extremities of pipe joints for the drilling of oil, gas and geothermal wells. The protectors are intended to protect the threads and seals of the assembly joint against shocks during transportation and handling in the wells and also eliminate the need to use a cardboard washer, which is only used to deliver the product, exposing the seal to shocks during handling in the wells after deterioration of the cardboard washer, considering that cardboard does not provide the same protection against impacts and shocks as steel.