Product Name: Grub Screws Drive Type: Hex Socket Head Style: Hex Head Made of stainless steel, hex head grub screws cup point socket. Often used for holding a pulley, gear, or other parts from turning relative to a shaft. Main Color: Silver Material: Stainless Steel Thread Size: 3 x 3mm/0.12 x 0.12 inch (D*L) Thread Pitch: 0.5mm Total Length: 3mm/0.12 inch Hole Diameter: 2mm/0.08 inch Weight: 7g Package Content: 50 (+/-2%) x Grub Screws Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.