M5x16mm Hex Socket Flat Head Stainless Steel Countersunk Bolts 50Pcs Drive Type: Hex Socket; Head Style: Flat Head; Material: Stainless Steel Package Content: 50(+/-2%)Pcs x Countersunk Bolts; Product Name: Countersunk Bolts; Thread Size: 5x12mm/0.2"x0.47"(D*L) Weight: 128g; Main Color: Silver Tone Thread Pitch: 0.8mm; Head Socket: Hex Type Hex Size: 3.5mm/0.14"; Total Size: 10x16mm/0.4"x0.63"(Max.D*l)