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Bolts and Screws, Steel, Corrosion and Moderate Heat Resistant Heat Treated, Roll Threaded
- Aerospace Standard
- AS7470D
- Revised
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
This procurement specification covers aircraft quality bolts and screws made from a corrosion and moderate heat-resistant martensitic iron base alloy of the type identified under the Unified Numbering System as UNS S41800 and of 140000 psi and 152000 psi tensile strengths at room temperature.
Rationale
AS6416 added, 1.4 added, 3.7.1.1.1 rewritten, 3.7.1.3.2 added, 3.7.2 magnification increased to X200, 3.7.2.2 revised, specs updated, photo of bolt head deleted, figures redrawn, Table 2 16 TPI thread value changed, Table 3 rounding of some test loads.
Recommended Content
Topic
Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 | ||
| Unnamed Dataset 3 | ||
| Table 1 | Tensile properties of test specimens | |
| Table 2 | UNJ external thread depth at 2H/3 and allowable thread lap depth | |
| Table 3 | Test loads | |
| Unnamed Dataset 7 | ||
| Table 4A | Nondestructive tests | |
| Table 4B | Destructive tests | |
| Table 5 | Sampling data nondestructive tests visual and dimensional characteristics for classes Major A, Major B, Minor A, and Minor B | |
| Table 6 | Classification of visual and dimensional characteristics | |
| Table 7 | Sampling data destructive tests mechanical and metallurgical characteristics |
Issuing Committee
E-25 General Standards for Aerospace and Propulsion Systems
The SAE E-25 General Standards for Aerospace & Propulsion Systems committee addresses aerospace propulsion systems and components. These systems and components include bolts, screws, nuts, washers, studs, rivets, pins, covers, O-rings, brackets, plugs and associated procurement requirements, as well as solid film lubricants and design specifications for screw threads and fastener assembly requirements.
Reference
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