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Bolts, Screws and Nuts - External Wrenching, Metric Threads - Design Parameters for
- Aerospace Standard
- MA1518B
- Reaffirmed
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
To fully define the following requirements for bolts with spline and hexagon heads of strength class up to but not including 1250 MPa:
-
a
Head dimensions (see 3.1)
-
b
Shank dimensions (see 3.2)
-
c
Geometric control (see 3.3)
-
d
Surface texture (see 3.4)
This document is based on one class of thread after all processing, including coating or plating, has been completed as follows: tolerance class 4h6h.
For particulars of thread, see AS1370. For thread runout and lead threads, see AS3062.
To fully define the following requirements for nuts with spline, plain hexagon and castellated configurations of strength class up to and including 1100 MPa:
-
a
Nut dimensions (see 4.1)
-
b
Geometric control (see 4.2)
-
c
Surface texture (see 4.3)
For particulars of threads, see AS1370.
This document is based on the following classes of internal threads after all processing, including coating or plating, has been completed:
-
Tolerance class 4H6H for sizes up to and including 5 mm
-
Tolerance class 4H5H for size 6 mm and larger
For particulars of thread, see AS1370.
Rationale
MA1518B has been reaffirmed to comply with the SAE five-year review policy.
Recommended Content
| Ground Vehicle Standard | High and Low Crown (Blind, Acorn) Hex Nuts |
| Technical Paper | Design of Metric Machine and Tapping Screws |
| Aerospace Standard | Recommended Wheel Tie Bolt Preload Procedure |
Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 | ||
| TABLE 1 | ||
| TABLE 2 | ||
| Unnamed Dataset 5 | ||
| TABLE 3 | ||
| TABLE 4 | ||
| TABLE 5 | ||
| TABLE 6 | Straightness of Shank and Thread | |
| TABLE 7 | ||
| TABLE 8 | ||
| TABLE 9 | ||
| TABLE 10 | ||
| TABLE 11 |
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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