Download or read book QC/T 870-2022 Translated English of Chinese Standard (QC/T 870-2022, QCT870-2022) written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2023-02-28 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document specifies the type, size, technical conditions of double end studs bm = 1.25d. This document is applicable to double end studs for automobiles, whose thread at the screw-in base end is ordinary coarse thread, transition fit thread, ordinary fine thread (thread specification is greater than M16), AND the thread at the screw-in nut end is ordinary coarse thread and ordinary fine thread.