GRADE 8.8 ALLOY STEEL MATERIAL: Corrosion resistance, good wear resistance, high hardness.M4 M5 M6 METRIC SIZES: This metric bolts and nuts kit includes 90 sets M4 bolts nuts washers assortment, 50 sets M5, 40 sets M6, totally 180 sets, 720pcs.PROFESSIONAL LABELED PACKAGE: All the nuts and bolts are organized in a sturdy transparent box and all the sizes will not mix up. Clear labels on cover is convenient for users to get the sizes they need. If unfortunately box damaged on shipping way, please contact us for a new box.WIDE APPLICATIONS: The bolts kit are widely used in automotive,machinery, furniture, car and motorcycle repair and DIY design.GREEN PROTECTION: FOLIV is donating from this purchase to White Memorial Conservation Center Inc., which is providing year-round environmental education programs for children and adults to protect natural resources (i.e. vegetation, water, soil, and air). Hope we could do something for this beautiful green world.
