Steelworks Corporation YAZ1016 Boltmaster Coupling Nut 3/4" - 10 x 2-1/4" Zinc Coarse Steel Bulk This item is Bolt master Coupling Nut 3/4 " - 10 X 2-1/4 " Zinc Coarse Steel Bulk Used For Rough Plumbing, Pipe And Conduit Accessories The product is manufactured in China