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Mechanical and Material Requirements for Externally Threaded Fasteners
- Ground Vehicle Standard
- J429_201405
- Revised
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
This SAE Standard covers the mechanical and material requirements for inch-series steel bolts, screws, studs, screws for sems1, and U-bolts2 in sizes to 1-1/2 in. inclusive.
The term “stud” as referred to herein applies to a cylindrical rod of moderate length threaded on either one or both ends or throughout its entire length. It does not apply to headed, collared, or similar products which are more closely characterized by requirements shown herein for bolts.
The mechanical properties included in Table 1 were compiled at an ambient temperature of approximately 20 °C (68 °F). These properties are valid within a temperature range which depends upon the material grade used and thermal and mechanical processing. Other properties such as fatigue behavior, corrosion resistance, impact properties, etc., are beyond the scope of this document and responsibility for ensuring the acceptability of the product for applications where conditions warrant consideration of these other properties shall be borne by the end user.
Rationale
Allow higher S and P percentages in alloy steel than allowed in Table 2 for manufacturing Grade 8 screws and bolts by hot forging or machining from bar. As an example, this enables producers of Grade 8 bolts and screws to use SAE 4140 steel that might not otherwise be acceptable for hot forging and machining from bar. The S and P values in Table 2 must be adhered to for all cold formed fasteners.
Recommended Content
| Ground Vehicle Standard | Mechanical and Material Requirements for Steel Nuts |
| Ground Vehicle Standard | Mechanical and Material Requirements for Metric Externally Threaded Steel Fasteners |
| Ground Vehicle Standard | Chemical Compositions of SAE Carbon Steels |
Topic
Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 | ||
| Unnamed Dataset 3 | ||
| TABLE 1 | MECHANICAL REQUIREMENTS AND IDENTIFICATION MARKING FOR BOLTS, SCREWS, STUDS, SEMS, AND U-BOLTS | |
| TABLE 2 | CHEMICAL COMPOSITION TEMPERING TEMPERATURE AND IDENTIFICATION FOR BOLTS, SCREWS, AND STUDS | |
| TABLE 3 | CARBON CONTENT VERSUS MINIMUM AS-QUENCHED HARDNESS FOR 90% MARTENSITE | |
| TABLE 4 | MECHANICAL TESTING REQUIREMENTS FOR BOLTS, SCREWS, STUDS, AND SEMS | |
| TABLE 5 | PROOF LOAD AND TENSILE STRENGTH REQUIREMENTS |
Issuing Committee
The Fasteners Committee is dedicated to serving the users of fasteners by identifying the need for and developing and maintaining Standards, Recommended Practices and Information Reports in the area of fasteners (including nuts, bolts, washers, screws, pins, rivets and other fasteners) for use with various Land-Sea vehicular applications. Areas addressed include coding, identification, dimensional, performance and procurement requirements as well as quality, shipping, storage, testing methods, application and installation guidelines. The SAE Fastener Committee interacts with other SAE committees and other technical societies, international standards organizations and government agencies to provide global standardization and avoid duplication of effort.
Reference
| Number | Title |
|---|---|
| ASME/B18.18 | This document is not part of the subscrption. |
| ASMEB18.2.1 | This document is not part of the subscrption. |
| ASTME18 | This document is not part of the subscrption. |
| ASTMF1470 | This document is not part of the subscrption. |
| ASTMF2328 | This document is not part of the subscrption. |
| ASTMF606 | This document is not part of the subscrption. |
| ASTMF788/F788M | This document is not part of the subscrption. |
| J1268 | This document is not part of the subscrption. |
| J403_201406 | Chemical Compositions of SAE Carbon Steels |
| J404 | This document is not part of the subscrption. |
| J409_202107 | Product Analysis - Permissible Variations from Specified Chemical Analysis of a Heat or Cast of Steel |
| J411_201501 | Carbon and Alloy Steels |
| J417_201801 | Hardness Tests and Hardness Number Conversions |
| J995_201707 | Mechanical and Material Requirements for Steel Nuts |
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