uxcell M8x30mm Hex Socket Machine Screw Countersunk Round Head Bolts 5PCS Drive Type: Hex Socket; Head Style: Round Head; Material: 304 Stainless Steel Package Content: 5 x Countersunk Bolts; Product Name: Countersunk Bolt; Thread Size: M8 x 30mm(D*L) Weight: 60g; Main Color: Silver Tone Thread Pitch: 1.25mm; Total Length: 34mm/ 1.3" Head Size: 14 x 4mm/0.55" x 0.16"(D*T); Width Across Flat (S): 5mm/ 0.2"