Full set of 10 factory high tensile 5x1 axle bolts with nuts. A must when converting your a31 c33 c34 r32 r33 s13 180sx s14 s15 from 2x3 bolt to 5x1 bolt as these bolts are larger.
These go between the axles and the diff.
These are special shanked bolts ordinary bolts will work loose.