How To Choose Suitable Rivet Size? The rivet size should depend on two main reasons. The type of rivet and the riveting hole diameter and length. When you insert the rivet in the riveting hole, Size D is the rivet length which coming out from your product. Size D should be 2.5mm to 3.5mm for semi tubular rivets, and 1.0mm to 1.5mm for solid rivets.






