M5 Grub Blind Headless Set Screw 1000 Bar Product description M5 x 5 Grub Bl;ind ScrewTechnical details :Length : 5 mm.Allen size : 2,5 mm.Material : st. st. 304Part number : 916G.A2.5.5Standard Allen Key : 9110025Allen Key with cross handle : 8011