uxcell 50Pcs 3mm x 16mm Metal Hexagon Socket Head Cap Screws Bolts 19mm Length Product Name : Hex Cap Screw;Head Type : Hex Cap Thread Diameter : M3 3mm/ 0.12";Thread Length : 15mm/ 0.6" Hex Diameter : 3mm/ 0.12";Overall Size : 17 x 5mm/ 0.7" x 0.2"(L*Max.D) Material : Metal;Color : Black Weight : 48g;Package Content : 50 Pcs(+/-2%) x Hex Cap Screws