Adjustment Screw

This screw features a rectangular head with a cup-shaped top.

a.) A taper pin is a cylindrical fastener made of steel that tapers uniformly from one end to the other, with one end having a slightly larger diameter than the other.

b.) This gradual taper allows the pin to fit tightly into a tapered hole, creating a secure, frictional hold without the need for additional fasteners or adhesives.

a.) A knurled head screw with internal threads inside the hole and grooves around the head is a specialized fastener designed for applications requiring manual tightening or where a secure grip is needed.

b.) The knurled head features textured grooves around its circumference, providing enhanced grip for hand-tightening or loosening. Meanwhile, the internal threads inside the hole enable the screw to be securely fastened to a threaded component or inserted into a pre-threaded hole.

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.