THÔNG SỐ KỸ THUẬT :
METRIC M3X0,5 – UNC 1/4 20 – NPT 1/8 27 – UNF 4 40 – METRIC M4X0,7 – UNC 1/4 28 – UNF 6 32 – METRIC M5X0,8 – UNC 5/16 18 – UNF 8 32 – METRIC M6X1 – UNC 5/16 24 – UNF 10 32 – METRIC M7X1 – UNC 3/8 16 – UNF 10 24 – METRIC M8X1,25 – UNC 3/8 24 – UNF 12 24 – METRIC M9X1,25 – UNC 7/16 14 – METRIC M10X1,5 – UNC 7/16 20 – METRIC M10X1 – UNC 1/2 13 – METRIC M12X1,75 – UNC 1/2 20