Thumb Screw

A thumb screw, like other types of screws, consists of a threaded shaft and a head of one design or another.

Depending on the head design, the following types of thumb screws are distinguished:

• Tall, with a knurled head;
• Tall, with a knurled head and a slot for a screwdriver;
• Low, with a knurled head;
• Large thumb screws with a slot for a screwdriver.

Thumb screws are also found in other designs, with different sizes.

Applications

Thumb screws are used in mechanical engineering, shipbuilding, instrumentation, and in the manufacture of household appliances.

Features

Material — stainless or zinc-plated steel, which has anti-corrosion properties. This allows joints with such screws to be used in unfavorable environments.