100 Pcs M4-0.70 x 16mm Button Head Socket Cap Bolts Screws, 18-8 Stainless Steel, Allen Hex Drive, ISO 7380, by Fullerkreg,Come in a Plastic Case

M4 Metric Thread Size (4mm), A2 Stainless Steel, also known as 18-8 or 304 Stainless Steel., Thread Size: M4 (4mm), Length (L): 16 mm, Hexagon Socket A/F (A): 2.5mm