GB/T 847-2017

Active

Cross-recessed raised countersunk (oval) head tapping screws

十字槽半沉头自攻螺钉

Standard Type
GBT
ICS
21.060.10
CCS
J13
Status
Active
Issue Date
2017-07-12
Implementation
2018-02-01
Centralized Committee
中国机械工业联合会
Issuing Authority
中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

Application Summary AI generated

This standard specifies the dimensional, mechanical, and performance requirements for cross-recessed raised countersunk (oval) head tapping screws. It is applied in the manufacturing and assembly of mechanical products, particularly in industries such as automotive, electronics, and construction, where these screws are used to form mating threads in materials like sheet metal or plastic without pre-tapping. The standard ensures interchangeability and reliability in fastening applications requiring a low-profile, aesthetically pleasing head design.

Related Standards

Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.