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Grade Dh Heavy Hex Nut, A563, Plain (Inch)
Heavy Hex Nuts A563 Grade DH Plain are high-strength, heat-treated carbon or alloy steel fasteners designed for structural applications requiring superior strength and durability. Manufactured to ASTM A563 Grade DH specifications, these nuts feature a larger width across flats and increased thickness compared to standard hex nuts, ensuring optimal load distribution and secure tightening. The plain (uncoated) finish provides a natural steel surface ideal for controlled environments or for applications where post-finishing, such as galvanizing, is required.
A563 Grade DH Heavy Hex Nuts are engineered to be used with high-strength structural bolts such as ASTM A325 and A490 in construction, bridgework, and heavy equipment assemblies. Offering excellent tensile and proof load properties, these nuts deliver consistent performance in demanding conditions. The plain finish provides flexibility for subsequent coating treatments or use in non-corrosive environments.
