Small Parts 31NCAG188 5/16″-18 3B Cage Nuts 18-8 Stainless Steel 10pcs

Description

Product Overview

The Small Parts 31NCAG188 5/16″-18 3B Cage Nuts are precision‑engineered fasteners designed to meet the rigorous demands of modern industrial and scientific applications. Constructed from high‑grade 18‑8 stainless steel, each nut offers superior corrosion resistance, ensuring long‑term reliability even in humid or chemically aggressive environments. The free‑floating square nut is housed within a spring‑steel cage that features two retaining legs positioned 180° apart, allowing the nut to be securely held at either panel edges or central locations without the need for additional support hardware. With dimensions of 0.01 × 0.53 × 0.30 inches and a weight of just 3.21 oz per pack, these cage nuts provide a compact yet robust solution for a wide range of fastening tasks. The product is manufactured in Taiwan, adhering to strict quality control standards, and is supplied in a convenient pack of ten, making it an economical choice for both small‑scale repairs and large‑volume production runs.

Usage

These cage nuts excel in applications where a secure, vibration‑resistant connection is essential. They are commonly used in electronic enclosures, control panels, machinery housings, and aerospace equipment where the ability to mount components on thin or perforated panels is required. The 5/16″‑18 thread size matches a broad selection of bolts and screws, enabling versatile assembly options for technicians and engineers. The dual‑leg cage design simplifies installation by allowing the nut to snap into place from either side of the panel, reducing assembly time and minimizing the risk of misalignment. Whether you are building a custom test rig, retrofitting an existing system, or performing routine maintenance on industrial equipment, these cage nuts provide a reliable fastening point that can withstand repeated tightening and loosening cycles without compromising structural integrity.

Why Choose Us

Choosing Small Parts means selecting a brand with a reputation for durability, precision, and customer‑focused service. Our 31NCAG188 cage nuts are manufactured using a proprietary heat‑treatment process that enhances the mechanical properties of the 18‑8 stainless steel, delivering a balance of strength and ductility that resists cracking under stress. The free‑floating design eliminates the need for additional retaining hardware, reducing part count and simplifying inventory management. Each pack undergoes rigorous inspection to verify dimensional accuracy, thread integrity, and cage leg alignment, ensuring that every nut performs to specification out of the box. We source raw materials from certified suppliers in Taiwan, where stringent environmental and labor standards are enforced, guaranteeing a product that is both ethically produced and environmentally responsible. In addition, our dedicated technical support team is available to assist with installation guidance, compatibility questions, and after‑sales service, providing peace of mind for engineers and procurement professionals alike.

Key Features

• Premium 18‑8 stainless steel construction delivers long‑lasting corrosion resistance for harsh environments.
• Free‑floating square nut with dual retaining legs enables quick, tool‑free installation on panel edges or center locations.
• Standard 5/16″‑18 thread size provides compatibility with a wide range of bolts and screws used in industrial applications.
• Compact dimensions and lightweight design reduce overall system weight while maintaining high load capacity.
• Pack of ten includes quality‑checked units and backed by responsive customer support for any post‑purchase inquiries.

FAQ

What thread size does this cage nut accommodate?

The 31NCAG188 cage nut is sized for a 5/16″‑18 thread, which is a common standard in many industrial and electronic fastening applications. This size ensures compatibility with a broad selection of bolts, screws, and studs, allowing you to integrate the nut into existing assemblies without the need for custom adapters.

How does the free‑floating design improve installation?

The free‑floating design features a spring‑steel cage with two retaining legs positioned opposite each other. This configuration lets the nut snap into place from either side of a panel, eliminating the need for precise alignment tools or additional retaining hardware. The result is a faster, more efficient installation process that reduces labor costs and minimizes the chance of misplacement.

Is the stainless steel suitable for harsh or corrosive environments?

Yes. The 18‑8 stainless steel used in these cage nuts is specifically chosen for its excellent resistance to oxidation, rust, and chemical exposure. It performs well in humid, marine, and chemically aggressive settings, making it an ideal choice for outdoor equipment, food‑processing machinery, and any application where durability against corrosion is critical.

What warranty and support are provided with this product?

Small Parts offers a limited one‑year warranty covering material and workmanship defects. If you encounter any issues, our technical support team is ready to assist with troubleshooting, replacement options, or guidance on proper installation techniques. We strive to ensure that every customer receives reliable performance and responsive service throughout the product’s lifecycle.

Can these cage nuts be used with thin or perforated panels?

Absolutely. The dual‑leg cage design is engineered to grip securely on panels as thin as 0.01 inches, and the free‑floating nature allows the nut to sit flush against perforated surfaces without requiring additional reinforcement. This makes the cage nuts especially useful for lightweight enclosures, aerospace panels, and other applications where material thickness is limited.