Boltmaster Weldable Expanded Steel 1/2″ – 12″X24″ 13 Ga Bulk Boltmaster 12 in. Uncoated Steel Weldable Expanded Steel Features References to National No. 2157981/2″ – 12″ x 24″13 Ga.Bulk USA SHIPPING eBay estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.