100 Pcs Stainless Steel Countersunk Hex Socket Knurled Screw M2.5x16mm Product Name : Countersunk Bolts;Material : Stainless Steel;Type : M2.5 x 16mm Thread Dia : 2.5mm / M2.5;Thread Length : 16mm / 0.63";Head Dia : 4.7mm / 0.19" Fit Hex Key Size : 2mm;Head Type : Pan Head Head Socket : Hex;Color : Black Weight : 70g;Package Content : 1002% xCountersunk Bolts