Still Awake 20 Pcs M3-0.5 x 45mm Hex Socket Head Cap Screws, 12.9 Grade Alloy Steel, Allen Socket Drive, Black Oxide Finish, Machine Thread，Half Thread （20 Pcs M3-0.5 x 45mm）

Size Name:M3-0.5 x 45mm Thread Diameter: 3 mm Head Diameter: 5.5 mm/0.21inch Head Height: 3 mm/0.12inch Screw Length: 45 mm/1.77inch Grade：12.9 Surface treatment: black oxidation High Quality Material Alloy Steel Package Included 20 x Socket Head Cap Bolts/Screws Quality assurance, please rest assured to buy, if there is any problem, you can return or exchange About this item Package Included: 20 x socket head screws. Metric M3 screws,Thread Diameter: 3mm; Thread Length: 20 mm/0.79inch; Total Length：45mm/1.77inch；Pitch Size: 0.5mm. The socket head cap screws are 12.9 Grade Alloy Steel which is becoming hardness and more stronger after heat treatment and with good feature of anti-oxidation, high temperature resistance, anti-corrosion. Socket cap screws are commonly used in machine parts, die fixturing, and clamping. The socket head enables driving where there is not sufficient space for wrenches or sockets. Socket cap screws are high-hardness that is widely used in home, industrial, laptops,3D printer and 3D printed projects. See more product details