Assorted screws box M5 universal multipurpose. Box contents: 20 mm hexagonal bolt: 20 chrome-plated pieces, 20 stainless steel. Hexagonal bolt 40 mm: 20 pieces chrome-plated, 20 pieces stainless steel. Allen bolt 20 mm: 20 pieces chrome-plated, 20 pieces stainless steel. Allen bolt 40 mm: 20 pieces chrome-plated, 20 pieces stainless steel. 20 mm countersunk bolt: 20 chromed pieces, 20 stainless steel. 40 mm countersunk bolt: 20 chrome-plated pieces, 20 stainless steel. 20 mm convex bolt: 20 chromed pieces, 20 stainless steel. 40 mm convex bolt: 20 chromed pieces, 20 stainless steel. Hexagon nut: 50 chrome-plated pieces, 50 stainless steel. Self-locking nut: 50 chromed pieces, 50 stainless steel. Blind nut: 50 chrome-plated pieces, 50 stainless steel. Split washer: 100 pieces chrome-plated, 100 pieces stainless steel. Smooth washer: 100 pieces chrome-plated, 100 pieces stainless steel.