How are sizes of pop rivets identified?

• A. Nominal thickness
• B. Length and material
• C. Grip and diameter
• D. Head type and color

Answer: (C)

Sizes for pop rivets are identified by two dimensions: the diameter of the rivet shank and the grip (the range of material thickness it can clamp). The diameter tells you how big the hole needs to be and the strength of the rivet, while the grip indicates the total thickness of the material stack the rivet is designed to join. Together, they define the usable size for a given joint. The color or head type mostly relates to appearance or coating, not the size, and nominal thickness or the overall length aren’t the standard identifying factors for rivet size.