United Titanium manufactures and inventories hex head sheet metal screws from #4 to 1/4” diameter. We also have metric hex head sheet metal screws available upon request. These hex head sheet metal screws are manufactured to the most recent ASME B18.6.4, IFI, or customer stated standards with thread type AB as our standard. Our inventory is home to thousands of these hex head sheet metal screws in any of our various materials and sizes.