5/8-11x3-1/2 Grade 8 Full Thread Square Neck Carriage Bolts. Plain & Oil finish to help protect the steel! Diameter/Pitch: 5/8"-11 Length Under Head: 3-1/2" Material: Grade 8 Threading: Coarse Full Thread Square Width (Max). Looking for additional items or different quantities? We'll be glad to help! FEEDBACK IS VERY IMPORTANT TO US! We will do our best to make it right. Our fasteners are quality inspected and manufactured to all applicable standards and specifications.
These are not second quality fasteners that were previously rejected or rescued from a scrap yard.