S-90630A155 3/8"-24 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through the durable nylon insert, ensuring long-term fastening security in high-stress environments.
• High-temperature durability with the nylon insert rated up to 220°F, maintaining locking performance in demanding thermal conditions.
• Exceptional strength and reliability from Grade 8 steel construction, supporting heavy-duty applications without failure.
• Precise thread engagement with Class 2B thread fit and UNF fine threads, reducing the risk of cross-threading and improving assembly efficiency.
• Easy installation and removal using standard 9/16" external hex drive, compatible with common tools for quick maintenance.
• Environmental and regulatory compliance with REACH and RoHS 3 standards, ensuring safe use in various industrial sectors.
• Consistent performance in right-hand threaded systems, providing reliable locking for machinery and equipment.

Professional Applications & Engineering Value

This Grade 8 steel nylon insert locknut is engineered to address critical challenges in industrial settings, such as vibration-induced loosening and thermal expansion. The nylon insert creates consistent friction against the bolt threads, effectively resisting shocks and dynamic loads in machinery, automotive, and aerospace assemblies. With UNF fine threads and a Class 2B thread fit, it ensures precise alignment and reduces wear, enhancing the lifespan of connected components. Its ability to perform up to 220°F makes it ideal for engines, pumps, and high-temperature equipment, while the external hex design allows for straightforward installation with standard wrenches. By integrating durability, precision, and compliance, this locknut delivers reliable fastening solutions that minimize downtime and maintenance costs in industrial applications.

Specification Summary & Compliance

This locknut features a 3/8"-24 UNF fine thread with Class 2B thread fit for accurate engagement and reduced backlash. Dimensions include a 9/16" hex width and 29/64" height, ensuring compatibility with standard tools. Manufactured from Grade 8 steel, it meets high-strength requirements, and the nylon insert locking type provides reliable vibration resistance. The product complies with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) standards, affirming its safety and environmental adherence for global industrial use.