DIN7991 1/4'' 5/16'' 3/8'' 1/2'' UNC Thread SUS304 A2-70 Stainless Steel Countersunk Head Hex Socket Allen Key ScrewsHome Improvement > Hardware5,22 USD (≈ 4,67 €)5,33 USDDisponibileSold by AliExpress WWVai al negozio