Overview Reviews Product Description 5/16" BSF22 tpi55 degree thread angle Die Nuts are designed for cleaning and resizing existing damaged threads. Product Videos Product Reviews Write a Review Write a Review × Die Nut Alloy Steel 5/16 BSF Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *