Product Description Hobson Engineering 579pc Flange Bolt Assortment Grab Kit FEFK003 Must have kit for any tradesmans workshop, this kit contains 579pcs in total and comes in a heavy-duty metal assortment case. Ideal for any workshop or service vehicle Features 579 Pieces Serrated Flange head Bolts and Nuts 4 x different lengths of each diameter bolt Length from 12mm to 50mm M5, M6, M8, M10 diameter Bolts Metric Class 8.8 High tensile Steel Zinc Plated FEFK003