Lyon Rivet Shelving Center Supports can be easily added to boltless storage racks. The supports sit snuggly between the beams to help maintain rigidity and stability. *Please note,Single Rivet Angle Beamsare not pre-drilled to accept this product. Minimizes beam rotation when supporting heavy loads Durable powder coat finish resists chipping, cracking, and corrosion This product is stocked in our warehouse and is ready to ship. Availability:Ships next business day