Fully hollow rivets
Fully hollow rivets are also known as Semi-tubular rivets are similar to solid rivets, except they have a full hole. The hollow rivet is a solid rivet but undergoes two additional steps while typing with the creation of a cylindrical hole from side to side.
Implementation. The purpose of this hole is to reduce the amount of force needed for application by rolling the tubular portion outward. These rivets are permanent fasteners manufactured according to the principle of cold striking.
The force needed to apply a semi-tubular rivet is about 1/4 of the amount needed to apply a solid rivet. The riveting process is similar to that of the semi-tubular rivet but holding is weaker because the inner diameter of the rivet is entirely hollow. Tubular rivets can also be used as pivot points (a joint where movement is preferred) since the swelling of the rivet is only at the tail. Solid rivets expand radially and generally fill the hole limiting movement.
CBH offers these rivets in different finishing and materials like Steel hollow, Aluminum hollow, Stainless steel, Brass, Copper, etc.