M4‑0.70 × 40 mm Hex Cap Screw – Stainless Steel A4 (316), DIN 933

Intended for long‑reach fastening in corrosion‑sensitive environments, the M4‑0.70 × 40 mm hex cap screw is manufactured to DIN 933 standards from A4 (316) stainless steel. The fully threaded design allows maximum thread engagement over the entire length, making it well suited for deeper assemblies and through‑hole applications. The hex head enables secure tightening with standard tools, while A4 stainless steel provides excellent resistance to rust, moisture, salt exposure, and chemicals. Commonly used in marine equipment, outdoor structures, machinery assemblies, and stainless steel fabrications where extended length and long‑term corrosion resistance are required.