uxcell 4.2mm x 16mm Flat Head Phillips Self Tapping Screw Fasteners 100 Pcs Head Style: Flat Head; Material: Stainless Steel; Product Name: Phillips Self Tapping Screws Weight: 117g; Package Content: 100(+/-2%) 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: 16 x 8mm/ 0.6" x 0.3"(L*Max.D) Head Size: 8 x 2.5mm/0.3" x 0.1"(D*T); Phillips Size: 4mm/ 0.16"