Diameter: 4mm
Bolt Length: 20mm
Pitch: 0.7mm
Material: SS 304
Bolt Head Style: Button
Nut NOT included
Allen Key size used: M2.5(2.5mm)
The M4 x 20mm Allen Button Head screw is 4mm in diameter and 20mm long. They have a button shaped head giving a dome shaped appearance. Made from high-quality Stainless Steel 304 (SS304), these screws offer excellent resistance to corrosion and wear, ensuring long-lasting durability and reliability.