GB/T 24425.4-2009Prevailing torgue type wire thread inserts for blind hole (English PDF)
锁紧型盲孔用钢丝螺套
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
October 15, 2009
Implementation date
March 1, 2010
Scope
GB/T 24425.4-2009 is the English-translated version of 锁紧型盲孔用钢丝螺套.
GB/T 24425.4-2009 is the Chinese standard "Prevailing torgue type wire thread inserts for blind hole". Its scope clause reads: This section GB/T 24425 specifies the nominal thread diameter of 3mm ~ 12mm, pitch 0.5mm ~ 1.75mm of coarse system Rows of symmetrical side locking type blind hole with a wire nut.
This section provides the wire thread insert, screw GB/T 24425.5 specified tolerances for internal threads 5H, the internal thread is formed as a band 5H (GB/T 197).
This Part shall apply to the wire thread insert material to improve the low intensity of the body (such as. aluminum, magnesium alloy, copper alloy, cast iron and non-metallic) spiro The strength of the hole to improve the fatigue strength of the screw, locking improve performance, repair damaged holes.
Note 1. This section uses the "nominal thread diameter" and "wire Lo sets of specifications" refers to the wire thread insert is screwed into GB/T 24425.5 specified internal thread after the formation Male thread, said internal thread diameter and thread size.
Note 2. The provisions of this part of the wire thread insert installation without handles, use special tools to install cone and engaging the wire thread insert is screwed into the internal thread, internal thread formed there Not more than 2 times the pitch of the incomplete thread. Its clauses include dimensions.
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Document preview — GB/T 24425.4-2009
National Standard of the People's Republic of China
- ICS
- 21.060.10
- Classification
- J 13
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
1 Scope
This section GB/T 24425 specifies the nominal thread diameter of 3mm ~ 12mm, pitch 0.5mm ~ 1.75mm of coarse system
Rows of symmetrical side locking type blind hole with a wire nut.
This section provides the wire thread insert, screw GB/T 24425.5 specified tolerances for internal threads 5H, the internal thread is formed as a band
5H (GB/T 197).
This Part shall apply to the wire thread insert material to improve the low intensity of the body (such as. aluminum, magnesium alloy, copper alloy, cast iron and non-metallic) spiro
The strength of the hole to improve the fatigue strength of the screw, locking improve performance, repair damaged holes.
Note 1. This section uses the "nominal thread diameter" and "wire Lo sets of specifications" refers to the wire thread insert is screwed into GB/T 24425.5 specified internal thread after the formation
Male thread, said internal thread diameter and thread size.
Note 2. The provisions of this part of the wire thread insert installation without handles, use special tools to install cone and engaging the wire thread insert is screwed into the internal thread, internal thread formed there
Not more than 2 times the pitch of the incomplete thread.
2 Normative references
The following documents contain provisions which, through reference GB/T 24425 in this section constitute provisions of this section. For dated reference documents
Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section
Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section.
GB/T 197 common thread tolerance (GB/T 197-2003, ISO 965-1.1998, ISO generalpurposemetric screwthreads-Tolerances-Part 1. Principlesbasicdata, MOD)
GB/T 1237 fasteners labeling method (GB/T 1237-2000, eqvISO 8991. 1986)
GB/T 24425.5 wire thread internal thread
GB/T 24425.6 wire thread insert Technical conditions
3 Dimensions
Type size 3.1 Lo sets of wires in a free state in Figure 1 and Table 1 of the regulations.
Figure 1 Type Size
GB/T 24425.1-2009 | GB/T 18230.3-2000 | GB/T 18230.5-2000 | GB/T 24425.6-2009 | GB/T 24425.5-2009 | GB/T 24425.3-2009 | […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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Related Standards
GB/T 24425.5-2009 — Internal thread for wire thread inserts
GB/T 24425.3-2009 — Prevailing torque type wire thread inserts
GB/T 24425.6-2009 — Specification for wire thread inserts
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GB/T 24425.4-2009
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