DIN 933 High Tensile Hex Bolt Grade 12.9 | Black Oxide Alloy Steel

Extreme Strength Fastener for Heavy Machinery. Grade: 12.9 (Tensile Strength ≥ 1220 MPa). Material: High-grade Alloy Steel (SCM435 / 42CrMo). Finish: Black Oxide & Oiled for rust protection. Offer: Factory Direct wholesale pricing. Custom sizes available. 💡 Need Non-Standard Sizes? We Are OEM Factory! We specialize in customizing fasteners based on your Drawings or Samples. Custom Material: Special Alloy / Stainless / Brass. Custom Size: Non-standard head, thread length, or odd shapes. Action: Click the button below to upload your drawing for a free quote.