S-91855A470 1/4"-28 Cap Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 Stainless Steel construction, ensuring long-term reliability in harsh environments.
• Precise and secure fastening with Class 2B thread fit, reducing the risk of cross-threading and providing consistent clamping force.
• Enhanced durability in fine-thread applications due to the 1/4"-28 UNF thread, offering better vibration resistance than coarse threads.
• Easy installation and removal with an external hex drive design, compatible with standard wrenches for efficient assembly.
• Compliance with major environmental regulations including RoHS 3 and REACH, making it suitable for global supply chains and sensitive industries.
• Optimal dimensional stability with a standard cap nut profile, 7/16" width, and 15/32" height for consistent performance in repetitive applications.
• Reliable performance in right-hand thread systems, ideal for standard industrial machinery and equipment assemblies.

Professional Applications & Engineering Value

This 1/4"-28 UNF Cap Nut is engineered to address common industrial challenges such as vibration loosening and corrosive wear. The 18-8 Stainless Steel material provides excellent resistance to rust and oxidation, making it ideal for applications in chemical processing, marine environments, and outdoor equipment. Its fine thread spacing and Class 2B thread fit ensure a tight, secure connection that maintains integrity under dynamic loads, reducing maintenance needs and downtime. The external hex drive allows for quick installation with standard tools, streamlining assembly lines and improving productivity in industrial cap nut applications across automotive, aerospace, and machinery sectors.

Specification Summary & Compliance

This cap nut adheres to UNF thread standards with a Class 2B thread fit for consistent dimensional accuracy and reliable performance. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances. The nut features a standard external hex drive, right-hand thread direction, and precise thread depth of 1/4", supporting its use in regulated and high-performance industrial assemblies.