NUT,BARREL NUT,CAP NUT 1.ISO,ANSI,JIS,DIN,BS& non-standard fastener ... .8 ,6.8,8.8,9.8.... NUT,BARREL NUT,CAP NUT A good non-standard fastenerS manufacturer for your better ... can pass.4.Quality equipments and QA staffs random check or total check products in each procedure,Items will be qualified when ...