100pcs M3*4/5/6/8/10/12/16/20mm Hex socket flat head cap screw DIN7991 grade 10.9 alloy steel black Countersunk head screw boltsHome Improvement > Hardware8,50 USD (≈ 7,00 CHF)8,67 USDDisponibileSold by AliExpress WWVai al negozio