OK-VISE® Fixturing Concept
 Code Thread    L (mm) 
DIN912M12X30 M12 30
DIN912M12X40 M12 40
DIN912M12X45 M12 40
DIN912M12X60 M12 60
DIN912M16X55 M16 55
DIN912M16X60 M16 60
DIN912M16X80 M16 80
DIN912M8X25 M8 25
DIN912M5X25 M5 25

M5, M8, M12 and M16 hex nut bolts are used with the low-profile clamps. Standard hex nut bolts are normally operated with an allen key.