M8x170mm Black Carbon Steel Half Thread Hex Socket Bolt & Nut Set

Engineered for precision and strength, this M8x170mm combination set features black carbon steel construction that is both corrosion resistant and exceptionally durable. The unique half-thread design on the lengthened socket head bolt provides superior grip and secure fastening, with clean, rounded edges that eliminate burrs for safer handling. These carbon steel screws offer excellent compression resistance, ensuring they won't deform under pressure while remaining easy to install. Perfect for machining, fixing, and attachment applications across multiple industries including construction, automotive, electronics, and home improvement projects. Whether you're a professional tradesperson or DIY enthusiast, this versatile set delivers reliable performance for both industrial products and domestic applications where secure, long-lasting connections are essential.