Description
Product Overview
The 5/16″ UNC eye nut offered by NIDAYE is engineered for the most demanding lifting and rigging tasks across marine, industrial, and offshore sectors. Crafted from high‑grade 316 stainless steel, this eye nut provides superior resistance to saltwater corrosion, chemical exposure, and harsh weather conditions, ensuring a long service life even in the toughest environments. With a working load limit (WLL) of 220 lb, it delivers reliable strength for medium‑size lifting operations, while the UNC (Unified National Coarse) thread profile guarantees compatibility with standard U.S. hardware and tools. The product dimensions of 6 × 4 × 0.5 inches and a lightweight of 3.53 oz make it easy to handle and install without adding unnecessary bulk. Each package contains four eye nuts, allowing users to outfit multiple rigging points or maintain a ready stock for routine maintenance. The design includes a smooth, rounded eye that minimizes stress concentrations on attached ropes or cables, reducing wear and extending the lifespan of both the eye nut and the lifting line. This combination of material quality, precise engineering, and thoughtful dimensions makes the NIDAYE 5/16″ UNC eye nut a trusted component for professionals who demand reliability and durability.
![[Product front view showing all components]](https://www.pearlmarket.store/wp-content/uploads/2026/08/d66d81912e714f38ac802e7d45b5878a.jpg)
Usage
Designed with versatility in mind, the 5/16″ UNC eye nut excels in a wide range of applications. In marine settings, it is ideal for securing deck cargo, anchoring mooring lines, and attaching winches on yachts, fishing vessels, and larger commercial ships. Its corrosion‑resistant stainless steel construction ensures that it will not rust or degrade when constantly exposed to seawater, making it a preferred choice for offshore platforms and marine maintenance crews. In industrial environments, the eye nut serves as a reliable lifting point for machinery, tools, and heavy components, facilitating safe hoisting operations on factories, warehouses, and construction sites. The UNC thread allows for rapid installation using standard wrenches, reducing downtime during equipment setup or repair. Additionally, the eye nut can be employed in rigging systems for theatrical productions, event staging, and aerial installations where secure yet removable connections are required. Its compact size and high load capacity also make it suitable for custom rigging solutions in automotive restoration, aerospace component handling, and even recreational activities such as rock climbing gear assembly, provided the load does not exceed the specified limit. By offering a balance of strength, durability, and ease of use, this eye nut meets the needs of professionals across diverse sectors.
Why Choose Us
Choosing NIDAYE for your eye nut requirements means selecting a partner committed to quality, performance, and customer satisfaction. Our 5/16″ UNC eye nut undergoes rigorous testing to verify its 220 lb working load limit, ensuring that each unit meets or exceeds industry standards for safety and reliability. The use of 316 stainless steel, a premium alloy known for its superior corrosion resistance, distinguishes our product from lower‑grade alternatives that may succumb to rust and structural degradation over time. NIDAYE also provides comprehensive technical support, offering guidance on proper installation, load calculations, and maintenance best practices to help customers achieve optimal results. Our packaging of four eye nuts per set is designed for convenience, allowing users to stock essential hardware without the need for frequent reordering. Moreover, we stand behind our products with a responsive after‑sales service, ready to address any concerns or defects promptly. By integrating meticulous engineering, durable materials, and dedicated support, NIDAYE delivers a lifting solution that professionals can trust for critical applications where safety and longevity are paramount.
Key Features
- Premium 316 stainless steel construction provides exceptional corrosion resistance for marine and industrial use.
- 220 lb working load limit ensures reliable strength for medium‑size lifting and rigging tasks.
- UNC thread design offers quick, secure installation with standard U.S. tools, reducing setup time.
- Compact, lightweight dimensions allow easy handling while maintaining high durability.
- Dedicated NIDAYE customer support and warranty give peace of mind and reliable after‑sales service.
FAQ
What is the maximum load this eye nut can safely support?
The eye nut is rated for a working load limit of 220 lb, meaning it can safely handle loads up to that weight when installed correctly.
Is this eye nut suitable for use in saltwater environments?
Yes. Made from 316 stainless steel, it offers excellent resistance to saltwater corrosion, making it ideal for marine applications.
Can the UNC thread be used with metric bolts?
No. The UNC thread follows the Unified National Coarse standard and is not compatible with metric-sized bolts or fasteners.
How many eye nuts are included in each package?
Each package contains four individual 5/16″ UNC eye nuts, providing multiple points for lifting or a convenient spare supply.
What warranty does NIDAYE provide for this product?
NIDAYE offers a limited warranty covering manufacturing defects, and our customer service team is ready to assist with any issues that arise.




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