GB/T 24425.1-2009: General type wire thread inserts

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Scope

This Standard specifies general type wire thread inserts with symmetrical profile,
of which the nominal diameter of the thread is 2mm~39mm, and the thread pitch
is 0.4mm~4mm.
The wire thread insert that is specified in this Part is screwed in the internal
thread for 6H specified in GB/T 24425.5. The tolerance zone of the formed
internal thread is 6H (GB/T 197).
The wire thread inserts specified in this Part are suitable for improving the
strength of screw holes in the body of low-strength materials (such as aluminum
alloy, magnesium alloy, copper alloy, cast iron and non-metal), improving the
fatigue strength of screws and repairing damaged screw holes.
NOTE: The "nominal thread diameter" and "wire thread insert specifications" used in this
Part REFER TO the nominal diameter and thread specifications of the internal thread
formed after the wire thread insert is screwed into the internal thread specified in GB/T
24425.

Basic Data

Standard ID	GB/T 24425.1-2009 (GB/T24425.1-2009)
Description (Translated English)	General type wire thread inserts
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	J13
Classification of International Standard	21.060.10
Word Count Estimation	17,152
Date of Issue	2009-10-15
Date of Implementation	2010-03-01
Quoted Standard	GB/T 197; GB/T 1237; GB/T 24425.5; GB/T 24425.6
Regulation (derived from)	National Standard Approval Announcement 2009 No.11 (Total No.151)
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the nominal diameter of 2mm ~ 39mm, pitch of symmetrical ordinary trader 0. 4mm ~ 4mm steel wire nut. Tolerances specified in this part of the wire thread insert, screw GB/T 24425. 5 requirements for internal thread 6H, the internal thread formed band of 6H (GB/T 197). Wire thread inserts provisions of this section apply to low- strength materials to improve the body (such as: aluminum, cast iron and non-metallic, copper alloys, magnesium alloy) screw strength and improve the fatigue strength of the screws to repair damaged holes.