Heavy Duty 12.9 Grade Black Hex Socket Cap Screws Nuts Set M2.5 To M6 DIN912 2500Pcs Mixed Sizes High Strength Carbon Steel With Wear Resistant Black Finish Anti Rust And Anti Oxidation Includes Matching Nuts For Wide Assembly Use M3 M4 M5

Heavy Duty DIN912 Hex Socket Screws & Nuts, 2500 Pcs M2.5-M6
✔️ 12.9 grade carbon steel, black finish, DIN912 hex sockets with nuts

Heavy-duty DIN912 hex socket cap screws with matching nuts, designed for metalworking, machinery, and general assemblies. This mixed-size set covers M2.5 through M6, built from 12.9-grade carbon steel with a wear-resistant black finish for anti-rust performance in industrial environments.

✅ 2500-piece mixed sizes: M2.5, M3, M4, M5, M6
✅ 12.9 grade carbon steel for high strength
✅ Black oxide finish provides anti-rust and anti-oxidation protection
✅ DIN912 hex socket cap bolts with matching nuts
✅ Includes nuts for wide assembly use

💡 What is a DIN912 hex socket screw with nuts used for in heavy-duty assemblies? This general-purpose fastener pair is handy for secure metal-to-metal joints in industrial settings.
- high-strength joining for equipment and machinery - compatible with M2.5-M6 sizes and DIN912 standard - corrosion-resistant black finish

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