Premium Carbon Steel External Hex Coupling Nuts – M10 to M64

High-Grade Material Options
Choose from carbon steel (8.8/10.9/12.9 grade), stainless steel, or brass for superior strength and corrosion resistance. Zinc plating enhances durability in harsh environments.
Precision Engineered for Heavy-Duty Use
Thickened/extended design ensures maximum load-bearing capacity, ideal for construction, machinery, and automotive applications.
Versatile Sizing & Compatibility
Wide range (M10-M64) fits diverse industrial needs, from small assemblies to large-scale structural projects.
Competitive Bulk Pricing
Direct factory sourcing guarantees unbeatable wholesale rates for large orders, with no compromise on quality.
Global Shipping & Full-Category Support
One-stop procurement for all industrial fasteners, backed by reliable logistics and lowest-price assurance.