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BOLT-MACHINE, DOUBLE HEXAGON, EXTENDED WASHER HEAD, PD SHANK, STEEL (SAE 8740), BLACK OXIDE, .2500-28 UNF-3A
- Aerospace Standard
- AS9158A
- Revised
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English
Rationale
FIGURE 1 RE-DRAWN, REVISE THREADS TO ASME B1.1, REVISE LIGHTENING HOLE DEFINITION TO ALLOW OPTIONAL SHAPE AT BOTTOM, ADD AS478 CLASS A MARKING, ADD MINIMUM BEARING FACE REQUIREMENT, ADD SURFACE TEXTURE REQUIREMENT TO HEAD, ADD REVISED DATUM FOR SHORT BOLT LENGTHS, UPDATE MPI REFERENCE, UPDATE SURFACE TEXTURE REFERENCES, EXTENSIVE EDITORIAL REVISIONS AND RE-FORMATTING.
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Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| TABLE 1 | PART NUMBERS AND DIMENSIONS |
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.
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