Material Stainless steel Thread diameter 4 mm Pitch size 0.7 mm Screw length 8 mm (the length of the screw does not include head) Allen Hex Drive 3mm High quality 304 stainless steel External hex drive system Head Style Knob Stainless Steel Finish Exterior Point Style Flat Tip About This Item The flanged pan head screws are 100% 304 stainless steel which provides a high level of chemical and corrosion resistance. Low pan head with wider bearing surface provides a finished look , making it an ideal choice when a clean appearance is desired. ISO 7380-2 flanged button head; Thread diameter 4mm; Thread pitch: 0.7mm; Screw length: 8mm. Package includes: 50 pcs hexagon socket pan head screws. Hexagon socket pan head screws are ideal for use in wood and damp environments.< /p>