Stainless Steel Coupling Nuts

South Coast Fasteners, Inc. supplies stainless steel coupling nuts designed to join two threaded rods or extend fasteners for longer reach. Made from stainless steel 18-8, these coupling nuts offer corrosion resistance and reliable strength for a variety of applications, including construction, machinery, and repair projects. Their durable build and clean finish make them a trusted choice whenever you need to connect components securely.

Order Premium Industrial Fasteners Today

Use the options below to order top-quality fasteners in the sizes and specifications you need. Questions about our fastener options? Contact our office in Anaheim, CA today, and our team will be happy to assist you. Whether you need repeat bulk orders or one-off small batch purchases, South Coast Fasteners has you covered for all your industrial fastener supplies.

Types of Stainless Steel Coupling Nuts We Offer

Stainless Steel 304 Coupling Nut

These coupling nuts are manufactured from stainless steel 304, providing dependable corrosion resistance and durability. They are commonly used in construction, equipment assembly, and general-purpose projects exposed to moisture. Their elongated hex design makes installation simple while ensuring a secure connection between threaded rods.

Stainless Steel 316 Coupling Nut

Made from stainless steel 316, these coupling nuts deliver superior protection against saltwater and chemicals. They are ideal for marine, coastal, and industrial applications where harsh environmental conditions are common. Their strength and corrosion resistance ensure long-term performance in critical assemblies.

Stainless Steel A2 70 Hex Coupling Nut DIN 6334

These metric coupling nuts are made from stainless steel A2 with Class 70 strength and comply with DIN 6334 standards. They are widely used in European construction, machinery, and equipment where corrosion resistance and consistent performance are required. Their long hex profile provides excellent grip for secure tightening.

Stainless Steel A4 316 Coupling Nut DIN 6334

These nuts are produced from stainless steel A4 316 for maximum resistance to saltwater and chemical exposure. Built to DIN 6334 specifications, they are essential in marine construction, chemical processing, and other metric applications requiring high strength and durability. Their corrosion protection makes them suitable for long-term installations in the toughest environments.

Material Options

South Coast Fasteners stocks stainless steel coupling nuts in high-performance material grades to handle a wide range of applications.

Stainless Steel 304

Stainless steel 304 provides reliable corrosion resistance and strength for everyday use. It is a versatile material used in construction, equipment repair, and light industrial projects where moisture protection is important.

Stainless Steel 316

Stainless steel 316 offers superior durability against saltwater and harsh chemicals. It is the material of choice for marine, chemical, and coastal applications where maximum longevity is required.

Stainless Steel A2 and A4 Grades

A2 and A4 are metric stainless steel grades widely used in European and international projects. A2 is best for general applications, while A4 316 is selected for marine and chemical environments requiring higher corrosion protection.

Why Choose South Coast Fasteners?

South Coast Fasteners provides stainless steel coupling nuts that combine durability, corrosion resistance, and compliance with global standards. Our inventory includes multiple grades and metric options to serve industries such as marine, construction, and chemical processing. Customers trust our expertise and stocked supply to deliver the fastening solutions they need without compromise.

Order Stainless Steel Coupling Nuts Online Today

Order stainless steel coupling nuts online today with South Coast Fasteners and get the grade, size, and specification you need delivered quickly. Whether for structural projects, marine installations, or industrial equipment, our stocked inventory ensures long-lasting and reliable fastening solutions.