Screw jack
Carpentry vice
Railway carriage couplings
Dead screw of lathe
55 Degree
45 Degree
30 Degree
29 Degree
Acme thread
Buttress thread
Knuckle thread
Square thread
1 Degree 55 Minutes
1 Degree 50 Minutes
1 Degree 45 Minutes
1 Degree 30 Minutes
60 Degree