... is the hexagon, the teeth are machine wire teeth, 1,Products DetailesMaterial1.Stainless Steel:SS201, SS303, SS304, SS316, SS410, SS4202,Steel ... the company, all kinds of hardware products, including nuts, flat pad and some other accessories.2,Factory Show We have 8 years of ... need to know:Due to our factory aim to product ,so if you are interesting our products,please send us your drawing ...