uxcell 4#-40x3/4inch Phillips Flat Countersunk Head Machine Screws 50pcs Head Style: Countersunk,Flat Head; Material: 304 Stainless Steel; Package Content: 50(+/-2%)pcs x Phillips Countersunk Screws Product Name: Phillips Countersunk Screws; Thread Size: 2.7x17mm/0.11"x0.67"(D*L); Weight: 37g Drive Type: Phillips; Fastener Type: Machine Screw; Main Color: Silver Tone Thread Pitch: 0.5mm; Total Length: 3/4" Standard: 4#-40; Head Size: 5x2mm/0.2"x0.08"(D*H)