Double end stud with nibs on flange

A pivot bolt is specifically designed to serve as a pivot point or hinge in mechanical assemblies, featuring a rectangular cutting head with small shoulder.

These T head bolts are valued for their strong, secure connections and their ability to provide a flush, neat appearance when installed.

Hexalobular socket with big shoulder

Hexalobular socket (6 lobe) / metric thread for both ends

a) Clinch studs, also known as self-clinching studs, are fasteners used in sheet metal fabrication and other applications where strong, permanent fastening is required. They typically consist of a threaded stud with a knurled or serrated shank and a flat or flanged head.

b) The installation process involves inserting the clinch stud into a pre-punched or drilled hole in the metal sheet. Then, using a press or similar tool, the knurled portion of the stud is compressed into the surrounding metal, creating a secure and permanent attachment without the need for welding or additional hardware. They offer advantages such as high strength, resistance to vibration, and a low-profile installation.

These bolts are commonly used in applications where precise alignment and smooth operation are required, such as in machinery, and automotive assembly. The shoulder is used to support and position components, providing a precise pivot point or bearing surface.