M8‑1.25 x 40mm Button Socket Cap Screw – A4 Stainless Steel (316)

This M8‑1.25 x 40mm button socket cap screw is manufactured from A4 (316) stainless steel to provide superior corrosion resistance in marine, chemical, and outdoor environments. The extended 40mm length offers deep thread engagement for secure fastening in thicker or multi‑component assemblies, while the low‑profile button head delivers a smooth, professional appearance in visible or clearance‑restricted applications. Featuring an internal hex drive, it is ideal for metric fastening where strength, durability, and long‑term corrosion resistance are required.