What Is a Flange Bolt?

The flange bolt is an integral bolt consisting of a hexagonal head and a flange (a gasket under the hexagon and a hexagonal fixed body) and a screw (a cylinder with external threads). It needs to cooperate with a nut for fastening. Connect the two through-hole parts.

Flange bolt

Chinese name: Flange bolt
Make up: Hex head and flange

Use: Fasten two parts with through holes
Classification: bolt

Flange bolt:

This type of connection is called a bolted connection.

If the nut is unscrewed from the bolt, the two parts can be separated again, so the bolt connection is a detachable connection.

1. Hexagonal head types: one is flat-brained and the other is concave-brained.

2. Surface color category: According to different needs, the surface has white plated, military green, colored yellow, and corrosion-resistant Dacromet.

3. Flange type: Depending on the position of the flange bolt, the size requirements of the disc are different. There are also flat bottom and toothed parts. The toothed parts have a non-slip effect.

4. According to the connection force method, there are ordinary and hinged holes. The flange bolts for hinged holes must be matched with the size of the hole and used when subjected to lateral force.

In addition, in order to meet the need for locking after installation, there are holes in the rod portion, and these holes can prevent the bolt from loosening when subjected to vibration.

Some flange bolts without threaded polished rod parts are called thin rod flange bolts. Such flange bolts are conducive to the connection of variable forces.

Remarks: GB5789 (big head), GB16674 instead of GB5787 (small head)