Uxcell a15111200ux1684 M4x50mm 304 Stainless Steel Phillips Button Head Machine Screws (Pack of 20) Main Color: Silver Tone; Head Style: Round Head; Material: 304 Stainless Steel Package Content: 20pcs x Phillips Screws; Product Name: Phillips Screw; Thread Size: M4 x 50mm Weight: 89g; Head Size: 8 x 3mm/ 0.3" x 0.12"(D*H); Type: Round Phillips Head Color: Silver Tone; Pitch: 0.7mm Phillips Size: 4.5mm/ 0.18"; Total Size: 53 x 8mm/ 2.1" x 0.3"(L*D)