conventional rep of std features(1)
Post on 28-May-2017
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![Page 1: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/1.jpg)
Conventional representation of standard features
![Page 2: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/2.jpg)
Conventional representation of standard features
![Page 3: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/3.jpg)
Conventional representation of standard features
![Page 4: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/4.jpg)
Conventional representation of standard features
![Page 5: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/5.jpg)
Conventional representation of screw threads
![Page 6: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/6.jpg)
Conventional representation of screw threads
Fig. extracted from Engineering Drawing (Part 1) by M.A. Parker and F. pickup
![Page 7: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/7.jpg)
Conventional representation of screw threads
Fig. extracted from Engineering Drawing (Part 1) by M.A. Parker and F. pickup
![Page 8: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/8.jpg)
Conventional representation of screw threads
Fig. extracted from Engineering Drawing (Part 1) by M.A. Parker and F. pickup
![Page 9: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/9.jpg)
Conventional representation of screw threads
Fig. extracted from Engineering Drawing (Part 1) by M.A. Parker and F. pickup
![Page 10: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/10.jpg)
Conventional representation of screw threads
Fig. extracted from Engineering Drawing (Part 1) by M.A. Parker and F. pickup
![Page 11: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/11.jpg)
Dimensioning of screw threads
Threads shown on engineering drawing must be designated completely by dimensions or a note.
ISO metric threads are designated in the following examples.
M18 x 2.5 – 6g external thread
M18 x 2.5 – 6H internal thread
M = Thread system symbol for ISO metric.
18 = Nominal diameter in mm.
2.5 = Pitch in mm.
6g = External thread tolerance class symbol.
6H = Internal thread tolerance class symbol
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Dimensioning of screw threads
The external and internal thread tolerances provide
three classes of fit as the following:-
1. The close fit 5H/4h is used when close accuracy of thread form and pitch is needed.
2. The medium fit 6H/6g is suitable for most general engineering purposes.
3. The free fit 7H/8g is used for applications requiring quick and easy assembly.
![Page 13: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/13.jpg)
Dimensioning of screw threads
Fig. extracted from Engineering Drawing (Part 1) by M.A. Parker and F. pickup
![Page 14: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/14.jpg)
Dimensioning of screw threads
Fig. extracted from Engineering Drawing (Part 1) by M.A. Parker and F. pickup
![Page 15: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/15.jpg)
Drawing hexagon nuts
Fig. extracted from Engineering Drawing (Part 1) by M.A. Parker and F. pickup
![Page 16: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/16.jpg)
Drawing hexagon nuts
Fig. extracted from Engineering Drawing (Part 1) by M.A. Parker and F. pickup
![Page 17: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/17.jpg)
Drawing hexagon nuts
Fig. extracted from Engineering Drawing (Part 1) by M.A. Parker and F. pickup
![Page 18: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/18.jpg)
Screw Fasteners
Fig. extracted from Engineering Drawing (Part 1) by M.A. Parker and F. pickup
![Page 19: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/19.jpg)
Screw Fasteners
Fig. extracted from Engineering Drawing (Part 1) by M.A. Parker and F. pickup
![Page 20: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/20.jpg)
Screw Fasteners
Fig. extracted from Engineering Drawing (Part 1) by M.A. Parker and F. pickup
![Page 21: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/21.jpg)
Screw Fasteners
Fig. extracted from Engineering Drawing (Part 1) by M.A. Parker and F. pickup
![Page 22: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/22.jpg)
Screw Fasteners
Fig. extracted from Engineering Drawing (Part 1) by M.A. Parker and F. pickup
![Page 23: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/23.jpg)
Screw Fasteners
Fig. extracted from Engineering Drawing (Part 1) by M.A. Parker and F. pickup
![Page 24: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/24.jpg)
Screw Fasteners
Fig. extracted from Engineering Drawing (Part 1) by M.A. Parker and F. pickup
![Page 25: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/25.jpg)
Locking Devices
![Page 26: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/26.jpg)
Locking Devices
![Page 27: Conventional Rep of Std Features(1)](https://reader031.vdocument.in/reader031/viewer/2022022415/577ccf381a28ab9e788f2ebc/html5/thumbnails/27.jpg)
The End