M5x20mm Hex Socket Machine Screw Countersunk Round Head Bolts 20PCS Drive Type: Hex Socket; Head Style: Round Head; Material: 304 Stainless Steel Package Content: 20 x Countersunk Bolts; Product Name: Countersunk Bolt; Thread Size: M5 x 20mm(D*L) Weight: 65g; Main Color: Silver Tone Thread Pitch: 0.8mm; Total Length: 23mm/ 0.9" Head Size: 9 x 3mm/0.35" x 0.12"(D*T); Width Across Flat (S): 3mm/ 0.12"