ASME B18.29.2M pdf free download

ASME B18.29.2M pdf free download Helical Coil Screw Thread Inserts: Free Running and Screw Locking (Metric Series)
1 GENERAL1.1 Scope
This Standard delineates the dimensional,mechani-cal, and performance data for the metric series helicalcoil screw thread insert and threaded hole into whichit is installed.Appendices that describe insert selection,STI (screw thread insert) taps,insert installation,andremoval tooling are also included.
The inclusion of dimensional data in this Standard isnot intended to imply that all products described arestock sizes.
2COMPARISON WITH ISO STANDARDS
At this time, no ISO Standard for metric helical coilscrew threads exists. Further,no work within ISO isexpected for some time.
3REFERENCES
The following is a list of publications referenced inthis Standard.Unless otherwise specified, the referencedstandard shall be the most recent issue at the time oforder placement.
ASME B1.3M,Screw Thread Gaging Systems forDimensional Acceptability — Inch and Metric ScrewThreads (UN,UNR,UNJ，M, and MJ)
ASME B1.13M,Metric Screw Threads —M ProfileASME B1.16M, Gages and Gaging for Metric M ProfileScrew Threads
ASME B1.21M,Metric Screw Threads —MJ ProfileASME B18.12,Glossary of Terms for Mechanical Fas-teners
ASME B18.18.1M, Inspection and Quality Assurance forGeneral Purpose Fasteners
ASME B18.24,Part ldentifying Number Code SystemStandard for B18 Fastener Products
ASME B46.1, Surface Texture (Surface Roughness, Wavi-ness, and Lay)
ASME B47.1,Gage Blanks
ASME B94.9,Taps —-Cut and Ground ThreadsASME Y14.5M, Dimensioning and TolerancingASME Y14.36M,Surface Texture Symbols
Publisher: The American Society of MechanicalEngineers (ASME)，Three Park Avenue,New York,NY 10016-5990; Order Department: 22 Law Drive, Box2300,Fairfield, NJ 07007-2300
ASTM B 209M,Standard Specification for Aluminumand Aluminum Alloy Sheet and Plate
ASTM E 290,Standard Test Method for Bend Testing ofMaterial for Ductility
ASTM A 370,Standard Test Methods and Definitionsfor Mechanical Testing
ASTMF 568M,Carbon and Alloy Steel ExternallyThreaded Metric Fasteners
Publisher: The American Society for Testing andMaterials (ASTM),100 Barr Harbor Drive,West Con-shohocken, PA 19428-2959
SAE AMS 4120,Aluminum Alloy,Rolled or Cold Fin-ished Bars, Rods, and Wire
SAE AS5272，Lubricant,Solid Dry Film,Heat Cured,Corrosion Inhibiting
SAE J417,Hardness Tests and Hardness Number Con-versions
Publisher: Society of Automotive Engineers (SAE),400Commonwealth Drive, Warrendale, PA 15096-0001
4TERMINOLOGY
For definitions of terms relating to fasteners or compo-nent features thereof used in this Standard, refer toASME B18.12.
5 DIMENSIONS
(a) Unless otherwise stated, all dimensions in thisStandard are in millimeters and apply before any coat-ing. When plating or coating is specified, the finishedproduct dimensions shall be as agreed upon by the sup-plier and purchaser.
(b) Symbols specifying geometric characteristics arein accordance with ASME Y14.5M.
6DESCRIPTION
Helical coil inserts are screw thread bushings coiledfrom wire of diamond-shape cross-section. Inserts arescrewed into STl-tapped holes to form nominal sizeinternal threads.Inserts are installed by torquingthrough a diametral tang. This tang is notched forremoval after installation. In the free state, they are largerin diameter than the tapped hole into which they are