S-91855A104 3-48 Cap Nuts
Cap Nuts
Image may differ from product. See technical specification for details.
Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel construction for long-term reliability in harsh environments
- Excellent thread engagement with Class 2B fit ensuring smooth assembly and reduced cross-threading risks
- Optimized for high-vibration applications through UNC coarse thread design that maintains secure fastening
- Easy installation and removal with standard 1/4" external hex drive compatible with common tools
- Enhanced safety and aesthetics from closed cap design that protects threads and prevents fluid ingress
- Compliance with global standards including RoHS 3 and REACH for international manufacturing applications
- Reliable performance with right-hand thread direction following industry-standard fastening conventions
Professional Applications & Engineering Value
This 3-48 UNC coarse thread cap nut delivers critical performance advantages in industrial settings where corrosion resistance and thread reliability are paramount. The 18-8 stainless steel composition provides exceptional durability against chemicals, moisture, and temperature variations, making it ideal for electrical enclosures, machinery guards, and fluid handling systems. The Class 2B thread fit ensures consistent engagement with mating components while the external hex drive allows for efficient installation in confined spaces. The standard cap nut profile offers both functional protection and clean aesthetics, solving common issues of thread damage and contamination in demanding manufacturing and assembly operations.
Specification Summary & Compliance
This cap nut features 3-48 UNC coarse threads with Class 2B thread fit per ASME B1.1 standards, ensuring precise dimensional accuracy. The 1/4" hex width and 1/4" height provide standardized tool compatibility while the 5/64" thread depth delivers optimal engagement. Manufactured from 18-8 stainless steel with right-hand thread direction and external hex drive, this component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for hazardous substance restrictions.
