One set of 30 mixed thread cutting palnuts / PAL nuts / counter nuts / speed nuts. Each set contains: 10 x AMZ 'PAS856' nuts for 5⁄16 inch stud (½ inch across flats hex nut, ⅞ inch washer diameter). 10 x Auveco '3405' nuts for ¼ inch stud (7⁄16 across flats hex nut, 11⁄16 inch washer diameter). 10 x AMZ 'PAS263' nuts for 3⁄16 inch stud (⅜ inch across flats hex nut, ⅝ inch washer diameter). These are self-locking nuts stamped from sheet metal.