DIN 1052 Washers for wood constructions 4,0x20 3,5x25 4,0x60 4,0x35 Clear zinc-plated steel 50 000 pcs. for each dimension Screws for wood with certification ETA-12/2080 : 4,0x60 Yellow passivated steel 150 000 pcs. DIN 7504 M Self-drilling screws with tapping thread Black steel 4,8x25 4,8x50 Clear zinc-plated steel 4,8x19 3,9x32 3,5x13 50 000 pcs. for each dimension DIN 7504 O Self-drilling screws with tapping thread Black steel 3,9x25 3,9x16 Clear zinc-plated steel 3,9x25 3,9x32 4,8x45 3,9x32 4,8x60 3,5x25 Black zinc-plated steel 4,2x19 4,2x16 50 000 pcs. for each dimension