uxcell 4.2mmx13mm Phillips Round Head Sheet Metal Self Tapping Screws 30pcs Head Style: Round Head; Material: 304 Stainless Steel; Product Name: Self Tapping Screw Weight: 46g; Package Content: 30 x Self Tapping Screws Thread Size: 4.2 x 13mm/0.17" x 0.5" (D*L); Drive Type: Phillips Main Color: Silver Tone; Overall Size: Length: 16mm/0.67" Head Diameter: 8mm/ 0.3"; Head Height: 3mm/0.12"