QC/T 870-2011
Double end studs. bm=1.25d (English Version)

Standard No.
QC/T 870-2011
Language
Chinese, Available in English version
Release Date
2011
Published By
Professional Standard - Automobile
Status
 2022-10
Replace By
QC/T 870-2022
Latest
QC/T 870-2022
Scope
This standard specifies the type, size and technical conditions of double-ended studs bm=1.25d. This standard is applicable to double-head automobiles whose screw-in base body end threads are ordinary coarse threads, transition fit threads and ordinary fine threads (thread specifications larger than M16), and screw-in nut end threads are ordinary coarse threads and ordinary fine threads. studs.

QC/T 870-2011 Referenced Document

  • GB/T 1167 The threads for transition fit
  • 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 2 Fasteners.Ends of parts with external thread*2016-02-24 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
  • GB/T 90.1 Fasteners—Acceptance inspection*2023-05-23 Update
  • GB/T 90.2 Fasteners--Marking and packaging
  • QC/T 326 Coding rules for automotive standardized parts*2013-10-17 Update
  • QC/T 597 Threaded fastener pre-coated microcapsule anaerobic dry film adhesive
  • QC/T 625 Metallic coatings and conversion coatings for automobile*2013-04-25 Update

QC/T 870-2011 history

Double end studs. bm=1.25d



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