
1. Create new part, sketch egg shape on top plane using spline
. 
2. Extrude
shape to 0.3in
, click top face and right click Insert Sketch. 
3. Select part edge
and click offset
to 0.3in
. Exit Sketch
.
4. Click hole wizard
, select Countersink, Ansi Inch, Flat Head Screw, #10, Normal, Through All
. Click Positions , click screw point at curve edge. OK. 
5. Select CSK for #10 Flat Head Machine Screw
, Click Insert>Pattern/Mirror>Curve Driven Pattern…
Define Pattern, select spline sketch and set # to 10, Equal spacing
. OK, done. 
