DIN933 Hex Head Screws 1/4 5/16 3/8 7/16 1/2 5/8 UNC SUS316 A4 Stainless Steel External Hexagon Bolts Partial ThreadedHome Improvement > Hardware2,34 $ (≈ 2,09 €)2,39 $Auf LagerSold by AliExpress WWZum Shop