1-1/8″-7 Conquest A563 Grade DH Heavy Hex Nut – Hot Dip Galvanized, Wax, & Blue Dye
The 1-1/8″-7 Conquest A563 Grade DH Heavy Hex Nut is a premium structural fastener designed for high-load applications in steel construction, bridgework, and utility infrastructure. Constructed from quenched and tempered carbon steel, this nut features a Hot Dip Galvanized, Wax, & Blue Dye finish and meets ASTM A563 Grade DH specifications for superior strength, corrosion resistance, and field identification.
Large-Diameter Structural Nut for Anchor Systems and Steel Framing
With a coarse 7 TPI thread and oversized heavy hex dimensions, this nut delivers secure fastening and dependable performance in critical bolted connections. The hot dip galvanized coating defends against corrosion, the wax finish ensures smooth assembly, and the blue dye allows for quick visual verification during inspection or installation.
Key Features
- Material: Medium carbon steel, quenched and tempered for structural performance.
- Thread Type/TPI: Coarse 7 TPI thread ensures strong thread engagement.
- Heavy Hex Design: Increased bearing surface and torque control for high-load installations.
- Finish: Hot Dip Galvanized, Waxed, and Blue Dyed for outdoor durability and ease of installation.
- Standard Compliance: Compliant with ASTM A563 Grade DH requirements.
Applications
- Bridge and highway structural connections
- Anchor bolt systems for large columns and base plates
- Steel-to-steel framing in commercial construction
- Utility and industrial infrastructure projects
- High-strength threaded rod assemblies (B7, A307 Grade B)
Installation Tips
- Pair with 1-1/8″-7 galvanized A325 or A490 bolts or compatible threaded rod.
- Use heavy-duty torque tools with sockets designed for heavy hex fasteners.
- Allow the wax coating to reduce friction and protect threads during tightening.
Related Items:
- A325 Structural Hex Bolts
- A307 Threaded Rod
- Grade B7 Threaded Rod
California Residents: WARNING








