GB/T 923-2009

Active

Acorn hexagon nuts

六角盖形螺母

Standard Type

GBT

ICS

21.060.10

CCS

J13

Status

Active

Issue Date

2009-10-15

Implementation

2010-03-01

Centralized Committee

中国机械工业联合会

Issuing Authority

中国机械工业联合会

Application Summary AI generated

GB/T 923-2009 specifies the dimensions, technical requirements, and marking of acorn hexagon nuts with domed caps, used to protect exposed bolt threads and prevent injury or corrosion. It is applied in mechanical assemblies, automotive, and industrial equipment where a finished appearance and safety covering are required. The standard ensures interchangeability and compatibility with corresponding bolts in general engineering and machinery contexts.

Related Standards

GB/T 9074.20-2004 Cross recessed hexagon head tapping screw with indentation and washer assemblies with plain washers GB/T 9074.5-2004 Cross recessed small pan head screw andwasher assemblies with plain washers GB/T 62.1-2004 Wing nuts--Round wing GB/T 62.3-2004 Wing nuts--Pressing wing GB/T 62.2-2004 Wing nuts--Square wing GB/T 62.4-2004 Wing nuts--Die-casting wing GB/T 3098.20-2004 Mechanical properties of fasteners--Wing nuts with specified proof torque GB/T 3098.19-2004 Mechanical properties of fasteners--Blind rivets with break pull mandrel

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.