Descriptions:Solid rivets are the strongest rivets used in fastened joints. To fasten the rivet, the end of the shank is impacted, pressed or spun after the rivet has been inserted into a work-piece.  A solid head is formed (upset) to create the clinched head of the rivet. When impact or press clinched, the force required to form the clinched head of the rivet swells the entire shank of the rivet to completely fill the work-piece hole.  Swelling of the shank occurs most by the clinched head end of the rivet. Pre-punched or drilled work-piece holes are required for use on most solid rivet applications.Specifications:Product Name: Aluminium Solid RivetMaterial: AluminiumShank Diameter(d1): 3mm(1/8 inch)Shank Length(L): 6mm(1/4 inch)Head Diameter(d): 5.2mm(13/64 inch)Head Thickness(k): 2mm(5/64 inch)Color: Silver ToneNet Weight: 42gPackage Content:200pcs(+/-2%) x Aluminium Solid Rivet.