Through bolts, see attachment Material: stainless steel A4 with ETA approval 2.400 pcs. 8 x 65 mm 2.700 pcs. 8 x 75 mm 1.100 pcs. 10 x 85 mm 1.000 pcs. 12 x 75 mm 1.000 pcs. 12 x 95 mm