Overview Reviews Product Description Hex nuts are used with a screw or bolt to fasten two or more parts. 316 stainless steel fasteners have excellent outdoor, salt water, chemical resistance and may be mildly magnetic. The best choice for all marine applications and outdoor projects. 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 UNC 316 Stainless Steel Hex Nut 100 Pc. 5226-018 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *