M4 x 30mm Phillips Flat Head Countersunk Bolts Machine Screws 30pcs Head Style: Flat Head; Material: 304 Stainless Steel; Package Content: 30 x Phillips Head Screw Product Name: Phillips Head Screw; Thread Size: M4 x 27mm(D*L); Weight: 74g Drive Type: Phillips; Main Color: Silver Tone Thread Pitch: 0.7mm; Total Length: 30mm/ 1.2" Head Diameter: 8mm/0.3"; Head Height: 3mm/0.12"