Overview Reviews Product Description Spaenaur Master Catalog Product Videos Custom Field Package quantity 20 Product Reviews Write a Review Write a Review × Spaenaur Machine Bolt Square Head (No Nut) 5/8"-11 Unc X 3" Lg Low Carbon Steel Plain Finish Ansi B18.2.1 MB-815 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *