GB/T 5278-1985 Fastener cotter pin holes and wire holes
Basic Information
Standard ID:
GB/T 5278-1985
Standard Name: Fastener cotter pin holes and wire holes
Chinese Name:
紧固件 开口销孔和金属丝孔
Standard category:National Standard (GB)
state:in force
Date of Release1985-08-01
Date of Implementation:1986-06-01
standard classification number
Standard ICS number:Mechanical systems and general parts >> 21.060 Fasteners
Standard Classification Number:Machinery>>General Parts>>J13 Fasteners
associated standards
Procurement status:≡ISO 7378-83
Publication information
other information
Release date:1985-08-01
Review date:2004-10-14
Drafting unit:Machinery Standards Institute
Focal point unit:National Technical Committee for Fastener Standardization
Publishing department:China Machinery Industry Federation
competent authority:China Machinery Industry Federation
Introduction to standards:
This standard specifies the size and location of split pins and wire holes for bolts, screws and studs. This standard is equivalent to the international standard ISO 7378-1983 "Fasteners - Bolts, screws and studs - Split pin holes and wire holes". GB/T 5278-1985 Fastener split pin holes and wire holes GB/T5278-1985 Standard download decompression password: www.bzxz.net
Some standard content:
National Standard of the People's Republic of China
Fasteners--Split pin holes and wireholes
Fasteners--Split pin holes and wireholesThis standard specifies the size and position of split pins and wireholes for bolts, screws and studs. UDC621.882
GB5278--85
This standard is equivalent to the international standard ISO7378-1983 "Fasteners-Bolts, Screws and Studs-Split pin holes and wireholes". 1 Split pin holes, as specified in Figure 1 and Table 1.
· Bolts, Screws and Nuts" select tolerance t. Note: According to GB3103.1--82 "Fastener Tolerances Figure 1
National Bureau of Standards 1985-08-01 Issued
1986-06-01 Implementation
Thread Specifications d
Thread Specifications d
GB5278-85
Note: For each - use occasion, the value is obtained by calculation, and after considering the cumulative tolerance of 1 and!, the distance between the hole and the end of the fastener should not be less than the value. Generally, in production, the tolerance of L, can be +IT142 metal wire hole, as specified in Figure 2 and Table 2.
Product Grade bZxz.net
Note: According to GB3103.1--82, the tolerance t is selected. B
Thread diameter d
Thread diameter d
Additional instructions:
GB527885
This standard is proposed by the Ministry of Machinery Industry of the People's Republic of China and is under the jurisdiction of the Standardization Research Institute of the Ministry of Machinery Industry. This standard is drafted by the Standardization Research Institute of the Ministry of Machinery Industry.
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