M3-0.5 x 8mm (100 pcs) Socket Head Cap Screws, 12.9 Grade Alloy Steel, Black Oxide Finish, Full Thread, Coarse Thread UNC, Allen Hex Drive

Diameter of the head: 5.68mm (max), Height of the head: 3.0mm (max); Screw Length: 8mm (excluding the height of the head), Specifications described in the pictures. Contact us if you have any questions., Thread: Full Coverage; Thread Pitch: 0.5mm; Color: Black, Made of grade 12.9 alloy steel which provides good strength and ideal use in indoor projects. You could also find stainless steel socket cap bolts if you hope to use them in environments with mositure because black oxide finish is not a protective finish and will rust when exposed to mositure environment.