This standard specifies the type, size and technical conditions of shoulder-type double-ended studs. This standard applies to automotive shoulder-type double-ended studs with thread specifications from M6 to M12 and a mechanical performance level of 8.8.
QC/T 854-2011 Referenced Document
GB/T 196 General purpose metric screw threads--Basic dimensions
GB/T 197 General purpose metric screw threads—Tolerances*, 2018-03-15 Update
GB/T 3098.1 Mechanical properties of fasteners.Blots, screws and studs
GB/T 3103.1 Tolerances for fasteners--Bolts,screws,studs and nuts
GB/T 5779.1 Fasteners-Surface discontinuities-Bolts,screws and studs for general requirements