M20‑2.50 × 40 mm Hex Cap Screw – Stainless Steel A4 (316), DIN 933

Designed for high‑load metric fastening where corrosion resistance and structural strength are critical, the M20‑2.50 × 40 mm hex cap screw is manufactured to DIN 933 specifications from A4 (316) stainless steel. The fully threaded shank provides strong, uniform thread engagement, delivering reliable clamping force in heavy‑duty mechanical and structural assemblies. A standard hex head allows secure installation and removal using common industrial tools. A4 stainless steel offers excellent resistance to rust, moisture, salt exposure, and chemical attack, making this fastener well suited for marine, outdoor, and industrial environments. Common applications include heavy machinery, structural steel connections, equipment frames, and stainless steel fabrications where durability, strength, and long service life are essential.