Secure critical components with ARP 611-1000 polished stainless steel 12-point bolts, delivering 170,000+ psi tensile strength and exceptional corrosion protection. These 5/16-18 x 1.000" underhead length bolts offer precise fit and fatigue resistance—great for valve covers, accessories, or chassis work. Better than Grade 8 in every way with a sleek finish; USA-engineered for builders who demand quality.
