Our Hex Nuts Grade 5 Steel Zinc Plated 1-3/8-12 are engineered for strength, durability, and reliable performance in demanding fastening applications. Made from Grade 5 steel and finished with a protective zinc coating, these hex nuts resist corrosion and wear in challenging environments.

Product Highlights

• Material: Grade 5 steel
• Finish: Zinc plated for corrosion resistance
• Size: 1-3/8-12 (1.375″ diameter, 12 threads per inch)
• Type: Hex nut with standard hex shape for easy wrenching
• Thread: 1-3/8″ x 12
• Applications: Suitable for machinery, construction, automotive, and general fastening

Designed to pair with bolts of 1-3/8″ diameter and 12 threads per inch, these nuts deliver a secure, vibration-resistant fit in a wide range of assemblies.

Why choose these hex nuts? They combine dependable strength with a durable finish to help extend service life in both indoor and outdoor applications.