Stanley Avdel Hemlok® structural blind rivets support automated, high-speed assembly where consistent installation and joint strength matter. The rivet’s lead-in point helps crews set fasteners quickly and reliably, while the broad blind-side bulb spreads the load across the rear sheet to reduce pull-through risk in thin or brittle materials. Hemlok® also performs well in oversized, misaligned, or slotted holes, making it a practical choice for sheet metal and similar applications where hole quality can vary. Accufast stocks Hemlok® in steel. For stainless steel applications, see the Autobulb variant.