Man sometime I wonder ! My Terminology was completly wrong there are solid rivits and blind rivits
Solid rivets are one of the oldest and most reliable types of fasteners, having been found in archaeological
findings dating back to the Bronze Age
. Solid rivets consist simply of a shaft and head which are deformed with a hammer or rivet gun
. The use of a rivet compression or crimping tool can also be used to deform this type of rivet; this tool is mainly used on rivets close to the edge of the fastened material, since the tool is limited by the depth of its frame. A rivet compression tool does not require two people and is generally the most foolproof way to install solid rivets.
Blind rivets, commonly referred to as pop rivets, (POP is the registered brand name of the original blind rivet manufacturer owned by Emhart Teknologies) are tubular and are supplied with a mandrel
through the center. The rivet assembly is inserted into a hole drilled through the parts to be joined and a specially designed tool is used to draw the mandrel into the rivet. This expands the blind end of the rivet and then the mandrel snaps off. These types of blind rivets have non-locking mandrels and are sometimes avoided for critical structural joints because the mandrels may fall out, due to vibration or other reasons, leaving a hollow rivet that will have a significantly lower load carrying capability than solid rivets. Furthermore, because of the mandrel they are more prone to failure from corrosion and vibration. Unlike solid rivets, blind rivets can be inserted and fully installed in a joint
from only one side of a part or structure, "blind" to the opposite side.