1/2" GRADE-8 (SAE) HIGH NUT, PHOSPATE/OIL FINISH (25-PACK)

SAE HEX HIGH NUT, GRADE-8 HEAT TRATED STEEL, UNF FINE THREAD. HEAT TREATED HIGH NUT, OFTEN REFERRED TO AS SAE HI NUT; COMMONLY USED ON THE SUSPENSIONS OF COMMERCIAL TRUCKS, TRACTOR TRAILERS AND CONSTRUCTION EQUIPMENT. THEIR ETENDED LENGTH ALLOWS FOR AN ADDITIONAL WRENCHING SURFACE AND IMPROVED ACCESSIBILITY WHEN INSTALLING OR REMOVING SUSPENSION COMPONENTS. THEY ARE SUPPLIED PLAIN WITH A LIGHT PROTECTIVE OIL FINISH.