Give the name of screw shown in figure.

Explanation:-

Hexagonal socket head cap screw :

• Socket Head Cap Screw is the standard for all of the high-strength hex recess-driven screws.

• Hexagonal Recess is used primarily on socket products.
• The points on the hex bit produce a high-pressure point against the contact location of the hex recess during assembly.
• Torque transfer from the bit to the screw is excellent. Driver bits have excessive wear.
• Typical applications are high-end instrumentation, and medical and test equipment.