... 6.8 8.8 10.8 12.9 3.Bolt, nut, washer, threaded rod. bolt and nutDIN, ANSI, JIS,ISO AND NON- ... 10.8 12.9Bolt, nut, washer, threaded rod, carriage bolts, wood screws, etc.Galvanized, painted, bright, blackCarbon steel, stainless steelRound ,hexagonal, ... square head, etc. we can produce according to your designHigh quality with long using life ...