Bolt kits for replacing old hardware or for spike sets that need hardware.
please double check saw model as 880 series saw from stihl do require the larger M6 Bolts and nuts.
M5 Bolt kit for saws 261 upwards to 661 will include the following
1x M5x12mm Bolt (top inner spike)
1x M5 Nut (top Inner Spike)
1x M5x20mm Bolt (bottom Inner Spike)