INDICATORS ON TYPES OF SCREW HEADS DIAGRAM YOU SHOULD KNOW

Chucks are specialised clamps designed to hold objects obtaining radial symmetry such as cylinders. They normally have jaws to secure the workpiece. The jaws (or pet dogs) are organised in a very star-like configuration with radial symmetry.These types of screws have sharp edges because the depth of the opening is a little lengthier than that in th