5/16" - 18 x 1/2" Hex Nut Grade 5 $0.08 SKU: HN516 P/N :HN516Manufacturer :APPROVED VENDOR - Quantity discounts available QuantityPrice -+ Add to Cart Ships in 1-2 Business Days Product Features Fast ShippingEasy ReturnsSecure Payment Product DescriptionProduct DescriptionHex Nut, Zinc Plated, 5/16" - 18 x 1/2" Across, Grade 5