Standard: ASTM Grades: B7 Threads: UNC and UNF Sizes: 1/2 to 4 inches Material: 45# carbon steel Surface treatment: plain, black, zinc (ZP), yellow zinc plating (YZP), hot dipped galvanizing (HDG), dacromet and PTFE Packing: small box, carton, bulk cartons/pallet and gunny bag
