Description
Monster Overview
Fix your project right the first time with A563 Grade DH Heavy Hex Nuts from Monster Bolts. These high-strength structural nuts are Made in the USA and built for demanding applications in construction, structural steel, bridges, heavy equipment, and industrial assemblies. The heavy hex profile provides a larger bearing surface and greater wrenching flats compared to standard finished hex nuts, making them ideal anywhere high clamp loads and structural integrity are critical.
Manufactured to ASTM A563 Grade DH mechanical requirements, these nuts are designed to work with compatible structural bolts and heavy hex bolts. The plain (uncoated) finish is typically used in applications where protective coatings are applied at the assembly or project level, or where environmental conditions are controlled. Available in bulk quantities, these nuts are an excellent choice for shops, fabricators, and job sites that need a reliable supply of USA-made structural hardware.
Monster Features
- Structural Grade: A563 Grade DH for high-strength structural connections.
- Nut Style: Heavy hex nut for increased wrench contact and bearing surface.
- Thread: Coarse thread (UNC) for common structural and equipment applications.
- Finish: Plain (unplated) finish, suitable for controlled environments or post-applied coatings.
- Origin: 100% Made in USA for consistent quality and specification compliance.
- Bulk Quantities: Cost-effective solution for contractors, fabricators, and maintenance departments.
Monster Specifications
| Specification | Details |
|---|---|
| Nut Type | Heavy Hex Nut |
| Grade | ASTM A563 Grade DH |
| Thread | UNC / Coarse Thread (inch series) |
| Finish | Plain (uncoated / unplated) |
| Material | High-strength steel meeting Grade DH requirements |
| Country of Origin | Made in USA |
| Standards | ASTM A563 Grade DH; ASME heavy hex nut dimensions |
| System of Measurement | Inch / SAE |
| Sizes Available | Offered in common A563 DH heavy hex nut sizes; select from the options above. |
More Monster Products
Matching Hardware: These heavy hex nuts are designed to be used with structural bolts and heavy hex bolts. For complementary USA-made fasteners, explore our Made in USA Fasteners Collection for bolts, washers, and related hardware.
Order Yours Today
Stock up on dependable USA-Made A563 Grade DH Heavy Hex Nuts in bulk. Choose your size and quantity above, then click “Add to Cart” to keep your projects and job sites supplied with structural-grade hardware you can trust.