Hvy Blk 2 -4.5 3.125x1.968 Gr2H PK13 MPN:4RVN7

Hvy Blk 2-4.5 is a premium heavy hex nut that stands out for its strength and robustness constructed from Grade 8 bolting material it exhibits unparalleled performance during high torque application preventing loosening or thread stripping off ensuring consistent tightening even with repetitive use in industrial setups its black oxide finish provides added corrosion protection ideal for marine applications while enhancing durability at elevated temperatures making them perfect option in power transmission systems ship building machinery maintenance shops where strength reliability count matters most when lives are at stake as safety is utmost priority.