Uxcell a15121600ux0550 M4x40mm Stainless Steel Phillips Round Pan Head Machine Screws (Pack of 50) Head Style: Round Head; Material: Stainless Steel; Package Content: 50(+/-2%)pcs x Round Pan Head Phillips Screws Product Name: Round Pan Head Phillips Screws; Thread Size: M4x40mm/0.16"x1.6"(D*L); Weight: 161g Drive Type: Phillips; Fastener Type: Machine Screw Main Color: Silver Tone; Thread Pitch: 0.7mm Total Length: 42mm/1.7"; Head Size: 6x2mm/0.24"x0.08"(D*H)