ASTM A563 Grade DH - Made in the USA
Hot Dip Galvanized ASTM A563 Grade DH Heavy Hex Nuts are tapped oversized to accommodate for the plating thickness. The Nuts are also provided with a lubricating dye that is dry to the touch, and which makes them visually obvious as per Supplementary Requirement S1.
Call 808-834-1919 or email Sales@HawaiiNutandBolt.com with your questions, submittal requests and order requirements.
Hawaii Nut & Bolt (HNB) specializes in distributing fasteners only. As such, we are not able to provide engineering advice, approvals, or warranties for specific applications. Customers are responsible for selecting the appropriate fasteners and performing any necessary testing to confirm conformance with application requirements.

