Stainless Steel Ball Bearing With Half Thread M2 M2.5 M3 M4 M5 M6 M8 M10 M12-M20 Product material: stainless steel Product standard: GB Surface treatment: original color bright polished Specification: Diameter 5mm-60mm multi-specification threads Characteristics: corrosion-resistant / non-polluting / non-rusting / threaded steel ball / strong spiral / high hardness
eBay