GB/T 13576.4-2008

Active

Buttress threads with the flank angles of 3 and 30 degrees - Part 4: Tolerances

锯齿形(3°、30°)螺纹 第4部分：公差

Standard Type
GBT
ICS
21.040.30
CCS
J04
Status
Active
Issue Date
2008-07-30
Implementation
2009-02-01
Centralized Committee
国家标准委
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 tolerance system for buttress threads with 3° and 30° flank angles, defining the permissible deviations for pitch, flank angle, and major/minor diameters. It is applied in mechanical engineering and manufacturing contexts where high-strength, unidirectional load-bearing threaded connections are required, such as in oil drilling equipment, hydraulic presses, and heavy machinery components. The standard ensures interchangeability and reliable assembly of these specialized threads during production and quality inspection.

Related Standards

GB/T 9144-2003 General purpose metric screw threads--Preferable plan GB/T 2516-2003 General purpose metric screw threads--Limit deviations GB/T 197-2003 General purpose metric screw threads--Tolerances GB/T 196-2003 General purpose metric screw threads--Basic dimensions GB/T 193-2003 General purpose metric screw threads--Generalplan GB/T 192-2003 General purpose metric screw threads--Basic profile GB/T 1414-2003 General purpose metric screw threads--The plan for pipe systems GB/T 9146-2003 General purpose metric screw threads--Limits of sizes for the screw threads of coarse quality and preferable plan
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.