S-98190A170 10-32 Cap Nuts

Key Features & Benefits at a Glance

• Vibration-resistant locking: Nylon 6/6 insert maintains secure fastening even under continuous motion, preventing loosening in dynamic applications.
• Enhanced durability with corrosion protection: Zinc-plated steel construction provides reliable defense against rust, extending service life in various environments.
• High-temperature performance: Nylon insert rated for up to 250°F (121°C), ensuring locking integrity in thermally demanding conditions.
• Aesthetic and protective cap: Black nylon cap offers a finished appearance while guarding threads against damage and contamination.
• Precision fine threading: 10-32 UNF Class 2B threads ensure smooth, accurate engagement for reliable assembly and reduced cross-threading risk.
• Robust mechanical strength: Grade 2 classification guarantees dependable load-bearing capacity for general industrial applications.
• Easy installation and removal: External hex drive allows for standard tool compatibility, streamlining maintenance and assembly processes.

Professional Applications & Engineering Value

This nylon insert locknut cap nut addresses critical challenges in machinery and equipment where vibration-induced loosening compromises safety and performance. The zinc-plated steel body provides essential corrosion resistance, while the Nylon 6/6 insert creates consistent friction to maintain clamp load without damaging mating threads. Its fine UNF thread and Class 2B fit ensure precise alignment in assemblies requiring repeated adjustments, such as automotive components, conveyor systems, and electronic enclosures. The integrated black nylon cap not only enhances visual appeal but also seals out debris, making it ideal for consumer-facing products and harsh industrial environments alike.

Specification Summary & Compliance

Manufactured to standard UNF thread specifications with Class 2B thread fit for consistent engagement. Dimensions include 10-32 thread size, 3/8" width, and 23/64" height. Complies with industry-recognized Grade 2 strength standards and is suitable for applications requiring RoHS and REACH material compliance. The nylon insert meets performance criteria for temperatures up to 250°F.