A Text Book on Engineering Graphics - Central Board of Secondary ...

Exercises:
NOTE: Assume missing dimensions proportionately
MACHINE DRAWING
1. Sketch freehand the Front view and Top view of a Plain stud of diameter = 25mm,
keeping its axis perpendicular to H.P. Give standard dimensions.
2. Sketch freehand the Front elevation and Side view of a Plain stud of diameter d =
25mm, with its axis parallel to V.P and H.P.Give standard dimensions.
3. Sketch freehand the Front view and Top view of a stud with a square neck, keeping
the axis perpendicular to H.P. Give standard dimensions.
4. Sketch freehand the Front elevation and Side view of a stud with a square neck,
keeping the axis parallel to V.P.Give standard dimensions.
5. Sketch freehand, the Front view and Plan of a stud with collar, keeping the axis
vertical. Give standard dimensions.
2.13 MACHINE SCREWS
A screw is a bolt which is threaded throughout its length. Generally it is
screwed into a threaded hole/tapped hole. Screws or machine screws are
available with different shapes of heads. The commonly used types of machine
screws are shown in fig 2.46
0.8d
L
0.4d
0.2d
0.85d
Ø d
FRONT VIEW
R-0.9d
0.2d
Ø 1.5d
0.85d
0.25d
0.25d
0.8d
L
FRONT VIEW FRONT VIEW
TOP VIEW
TOP VIEW
Ød = 10
ROUND CUP HEAD CHEESE HEAD
COUNTERSUNK HEAD GRUB SCREW
MACHINE SCREWS Fig 2.46
76 ENGINEERING GRAPHICS
0.12d
45°
0.2d
Ø 1.8d
0.85d
0.25d 0.13d
L
SCREW
Fig 2.45
0.85d
0.6d
Ø d Ø d Ø d
R=d
FRONT VIEW
45°