Round square bolt - 5961361-01Spare part from the Husqvarna spare parts catalogSuitable for example: Husqvarna TC 138 Husqvarna TC238 Husqvarna LT151 Husqvarna LTH154 Husqvarna TC 142 Husqvarna TS 138 Jonsered LT 2115 Jonsered LT 2217 A Jonsered LT 2216 Husqvarna TS 238