S-90291A873 3/8"-24 ASME B18.3 Set Screws
Set Screws
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Basic Information
Head Parameters
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
Installation & Application
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Key Features & Benefits at a Glance
- Superior vibration resistance with non-marring Nylon 6/6 tip that prevents loosening under dynamic loads
- Exceptional temperature tolerance from -50° to 250°F for reliable performance in extreme environments
- Precision Class 3A thread fit ensures tight tolerances and secure fastening in critical applications
- Corrosion-resistant 18-8 stainless steel construction provides long-term durability in harsh conditions
- Headless hex drive design allows for flush installation in confined spaces with 3/16" drive compatibility
- Non-damaging tip protection with green nylon tip that prevents surface damage to sensitive components
- Industry-standard compliance with ASME B18.3 specifications for guaranteed quality and interchangeability
Professional Applications & Engineering Value
This 3/8"-24 UNF Class 3A nylon tip set screw delivers exceptional engineering value in applications where vibration resistance and surface protection are critical. The 18-8 stainless steel construction provides excellent corrosion resistance while maintaining Rockwell B80 hardness for durable performance. The headless hex drive design with 3/16" drive size enables secure installation in tight spaces where traditional fasteners cannot be used. The Nylon 6/6 plastic tip creates a non-marring, vibration-dampening interface that prevents damage to shafts, gears, and precision components while maintaining grip under thermal cycling from -50° to 250°F. This combination of features makes it ideal for industrial machinery, automotive assemblies, and precision equipment where reliable, long-term fastening is essential.
Specification Summary & Compliance
This set screw features 3/8"-24 UNF fine threads with Class 3A thread fit for precision applications, manufactured from 18-8 stainless steel with Rockwell B80 hardness. The fastener complies with ASME B18.3 manufacturing specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards. The right-hand thread direction and 0.375" thread diameter ensure compatibility with standard industrial components.
