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DIN 934 A194 Heavy Hex Nut. Integrated Manufacturer: Owns a modern 18,000 sqm facility for high-quality fastener production. Wide Size Range: Heavy hex nuts available from M10 to M100, covering 1/4' to 4' sizes. Customization Support: OEM/ODM services available with customized surface coatings and samples. Rigorous QA System: Two-stage protocol: pre-production checks and full batch pre-shipment inspection. Versatile Applications: Suitable for machinery, oil & gas, construction, shipbuilding, and energy sectors. Flexible Payment: Accepts FOB, CIF, EXW with SWIFT TT, D/P, or LC at sight for bulk orders.