Overview Reviews Product Description Machine screw nuts are used with machine screws and are usually smaller than 1/4. 18.8 stainless steel fasteners have excellent corrosion resistant qualities and are an excellent choice for general use and outdoor applications. Papco Nuts Catalog Product Videos Custom Field Box quantity 100 Diameter 3/8"-16 Product Reviews Write a Review Write a Review × Paulin 3/8"-16 18.8 UNC Stainless Steel Machine Screw Hex Nut 100 Pc. 5035-018 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *