High-Strength Blackened Hex Nut Bolt Set: Iron, 8/10.9/12.9 Grade.

This product is a set of high-strength hex nut bolts designed for durability and reliability in demanding applications. Crafted from robust iron, these bolts are available in 8, 10.9, and 12.9 grade options, offering varying levels of tensile strength to suit different needs. The blackened finish provides additional resistance to corrosion and wear, making them suitable for both indoor and outdoor use. Ideal for construction, automotive, and industrial projects, these hex nut bolts ensure secure fastening and long-lasting performance. Surface treatment: Oxidation black Material Grade: Carbon Steel Product Grade: A-level Strength level: Level 8 Purpose and Function: Locking Manufacture country: China Instructions included: No