S-90202A205 1/4"-20 x 1" ASTM A582 Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 Stainless Steel construction, ideal for harsh environments and extending service life.
• Reliable and secure connections ensured by the Class 2B thread fit, providing consistent engagement and reducing the risk of loosening.
• Broad compatibility and easy assembly with standard 1/4"-20 UNC coarse threads, fitting a wide range of common industrial components.
• Full-length threading offers maximum adjustability and strength along the entire nut for versatile application use.
• Compliance with stringent industry standards including ASTM A582, guaranteeing material quality and performance reliability.
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements for hazardous substances.
• Robust design with a 23/64" OD and 1" length provides a solid, durable connection point for demanding applications.

Professional Applications & Engineering Value

This 1/4"-20 UNC coupling nut is engineered to solve critical challenges in assembly and maintenance where long-term reliability is non-negotiable. Manufactured from 18-8 Stainless Steel, it offers excellent resistance to oxidation and corrosion, making it suitable for outdoor, marine, or chemical-exposed settings. The fully threaded and right-hand coarse thread design allows for quick installation and a strong, vibration-resistant joint, essential in machinery, structural frameworks, and conveyor systems. Its compliance with ASTM A582 ensures that every nut meets high-quality material specifications, providing peace of mind for engineers and procurement specialists who require dependable, long-lasting coupling nuts that minimize downtime and maintenance costs.

Specification Summary & Compliance

This coupling nut adheres to precise dimensional standards, including a Class 2B thread fit for consistent threading accuracy. It conforms to the UNC thread standard with a coarse 1/4"-20 thread size, an OD of 23/64", and a length of 1". The nut is manufactured in compliance with the ASTM A582 specification for stainless steel steel bars. Additionally, it is verified to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring it meets environmental and safety regulations for industrial use.