Diameter 8mm and 10mm Stainless Steel Ball Threaded 2mm and 4mm Hole Guangzhou Decok Steel Ball Co., Ltd. Base Info Description Pre：8mm 10mm 12mm 18mm Carbon Steel Ball with Threaded Screw Hole Next：Tapped Ball Stainless Steel 6mm 8mm 10mm 20mm 50mm Threaded Hole M3
