What Is a Countersunk Rivet?

Countersunk head rivets are a type of parts that are riveted by self-deformation or interference during riveting. Countersunk head rivets are widely used in automobiles, vehicles, mechanical and electrical products, building decoration and household appliances. For low strength requirements, thread diameter less than 10MM, screw in and tighten. The screw head sinks into the connected part in whole or in part. This structure is mostly used in places with a smooth and smooth appearance, such as the surface of the instrument ^[1] .

According to GB / T3098.18-2004, the test method for the mechanical properties of countersunk head rivets is provided, including:

Countersunk head rivets are suitable for occasions where the surface requires a smooth nail head that can be slightly exposed or not allowed to be exposed.

= 60 ° Rough countersunk head rivet (GB 865 -1986)

Countersunk head rivets ^[2]

= 90 ° refined countersunk head rivets (GB 869 -1986)

= 90 ° Countersunk Head Rivets (G954-1986) ^[2]