Heavy A563

UNC A563 Grade DH Heavy Hex Nut - Galvanized 335056 - 335130

Heavy hex nuts have a larger measurement across the flats and are also slightly thicker than a regular hex nut. They are commonly deployed on structural or pressure vessel applications and also utilized on scraper blade applications for graders, loaders...

UNC A563 Grade C Heavy Hex Nut - Plain Steel 334056 - 334156

Heavy hex nuts have a larger measurement across the flats and are also slightly thicker than a regular hex nut. They are commonly deployed on structural or pressure vessel applications and also utilized on scraper blade applications for graders, loaders...

UNC A563 Grade A/B Heavy Hex Nut - Plain Steel 318030 - 318650

Heavy hex nuts have a larger measurement across the flats and are also slightly thicker than a regular hex nut. They are commonly deployed on structural or pressure vessel applications and also utilized on scraper blade applications for graders, loaders...