depth of square thread

depth of metric thread

depth of acme thread

depth of buttress thread

Screw jack

Lead screw of lathe

Carpentry vice

General purpose nut and bolt

1.25 mm

1.5 mm

2.25 mm

3.00 mm

4.75 mm

5.75 mm

6.75 mm

7.75 mm

Depth is 1/4 pitch

Depth is 1/2 pitch

Depth is 3/4 pitch

Depth is equal to pitch