• 100 pieces of hex head screws, ideal for a wide range of applications. • Thread Size: M4-0.7; Thread Length: 20mm; Head Diameter: 7.22mm; Head Thickness: 4mm; Hex Width: 3mm. • Made of 304 stainless steel, they offer corrosion resistance, strength, and durability. • Suitable for moderate temperature environments and areas with low corrosion risk. • Used in machinery to fasten and connect components, ensuring stable operation. • Essential for assembling machines, equipment, and tools, maintaining their structural integrity. • Allow adjustment of mechanical parts positions and perform maintenance tasks. • Before purchasing, confirm the correct size needed.