how to make a screw in solidworksstep.1 open solidworks and select front plane then draw a circle with diameter you want

step.2 extrude the circle give it the deepth you want and do a chamber in one face 5x45° it depends on your circle diameter

step.3 draw a circle equal diameter to the first circle drawn on the face where you do a chamber then make helix

000001

i use revolution and patch

after draw helix , exit to skchet and draw a profile " a little triangle" on right plane or botton plane

stil