Overview Reviews Product Description Spaenaur Master Catalog Product Videos Custom Field Package quantity 25 Product Reviews Write a Review Write a Review × Spaenaur 2H Heavy Hex Structural Nut 5/16"-18 Unc (9/16"A/F X 19/64"Thk) Astm A-194 Steel Plain Finish 155-201 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *