Drilled Stainless Steel Ball, Drilled Threaded Steel Ball with Hole M2 Screw 32.0mm AISI304134G SUS 304 Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre:33.337mm 1 5/16" Bicycle Part HRC58-62 Polished Diameter 12mm Stainless Steel Bearing Ball AISI304 143G Next:50.0mm 2inch High Precision Stainles Steel Price AISI304 Stainless Steel Balls