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ISO 4026 black zinc plated hexagon socket flat end set screws

The fastener's head is available in different types such as square, slotted, and hexagonal heads, each with distinct characteristics: Square head - Suitable for applying significant tightening torque, delivering substantial tightening force. However, due to its large head size, embedding it in parts might be inconvenient and unsafe, especially in moving components. Slotted head - Convenient for sinking into parts but offers lower tightening force and may easily unscrew. Hexagon socket head - Also convenient for embedding into parts and widely used. Moreover, the end of the set screw can vary based on usage requirements: Cone end - Suitable for low-hardness parts. When employing a tip-less conical screw, it's essential to create a hole on the part's surface, pressing the cone surface against the pit's side. Flat end - Provides a large contact area and doesn't damage the part's surface after tightening. Ideal for tightening surfaces with high hardness or for frequent position adjustments. Cylindrical end - Doesn't harm the part's surface and is often used to secure components mounted on tube shafts (thin-walled parts). The end inserted into the shaft's hole can withstand shearing forces, transmitting substantial loads.

Application:

For tightening screws, the use is also relatively wide. It is mainly a kind of screw specially used for fixing the relative position of the machine.