STAINLESS STEEL ROUND HEAD SOLID RIVETS DIN 660

Round Head Solid Rivets DIN 660 — A solid rivet is a fundamentally different fastening method from a blind rivet: there's no mandrel and no one-side setting trick, so the joint has to be accessible from both faces during installation. The shank passes through aligned holes in the parts being joined, and the protruding end is hammered or pressed over - often against a rivet set or die - to form a second head that clamps both parts together permanently. DIN 660's round head gives the traditional proud, domed profile on both faces once the joint is formed, and it's a genuinely strong, vibration-resistant joint suited to structural brackets, tooling, and fabrication work where both sides of the joint are reachable and a permanent, non-threaded fixing is wanted. Because there's no mandrel to snap and no blind-side expansion to rely on, solid rivets can generally take a heavier load than a blind rivet of similar shank diameter, which is part of why they remain the standard choice in some structural and heavy fabrication applications despite needing two-sided access. Sizing comes down to shank diameter for the shear load expected and overall length for the combined thickness of material being joined plus enough protruding shank to form a properly filled second head - too little protrusion and the formed head will be thin and weak, too much and it's wasted material that's harder to work down cleanly. Grade selection follows familiar lines: A2 stainless suits general engineering, construction, and fabrication work; A4 is worth the extra cost in marine, coastal, or washdown environments where chloride-driven pitting corrosion would otherwise shorten an A2 rivet's service life, and where the rivet joins dissimilar metals, matching or isolating grades helps avoid galvanic corrosion at the joint over time. DIN 660 defines the shank diameter, head dimensions, and length range for this pattern, keeping supply consistent across manufacturers.

FAQs
How does a solid rivet differ from a blind rivet like ISO 15983?
A solid rivet needs access to both sides of the joint to form the second head; a blind rivet is set entirely from one side using a mandrel, needing only access to the front face.

How does it compare to the countersunk solid rivet, DIN 661?
Same solid-shank construction and installation method; DIN 660 leaves a round head on both faces, DIN 661 uses a countersunk head on one face for a flush finish.

Is a solid rivet stronger than a blind rivet of the same diameter?
Generally, yes - without a mandrel or blind-side expansion to rely on, a solid rivet joint typically handles higher shear loads than a blind rivet of similar shank size, which is why it remains preferred in some structural and heavy fabrication work.