Black cup head square neck bolt

The head of the Black cup head square neck bolt is cup-shaped, with a square neck attached below, and there is a groove around the neck. It is generally made of carbon steel or stainless steel. We offer free samples with diameters ranging from M6 to M20.

Product details

They are used in furniture manufacturing. When furniture factories produce solid wood furniture, such as tables and chairs, they will use them. When connecting the tabletop and the table legs, drill holes at the connection first. Align the bolt grooves with the holes and insert them. The square neck can prevent the bolts from rotating when tightening the nuts. The cup head will not scratch the surface of the wood. After tightening, the table is firm and will not loosen even after several years of use.

Black cup head square neck bolts are used to assemble electronic devices such as computer cases and printers. The internal space of electronic devices is small and there are many parts. They can firmly fix components such as circuit boards and casings. The grooves prevent bolts from loosening. The cup heads do not take up space and will not touch other parts, ensuring the normal operation of the equipment.

Product selling point

The Black cup head square neck bolts have a good anti-loosening effect and are easy to install. Its slot can be inserted into the holes of the material and is not easy to loosen after being tightened. The square neck won't turn along when tightening the nut, saving a lot of trouble. The cup head can evenly distribute the pressure and will not damage the material. And it is affordable.

Product parameters