S-90291A871 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
- Vibration-resistant secure locking with durable nylon 6/6 tip that prevents loosening under dynamic loads
- Superior corrosion resistance from 18-8 stainless steel construction for long service life in harsh environments
- Precise thread engagement with Class 3A UNF fine threads ensuring reliable, tight fastening in critical applications
- Wide temperature compatibility (-50° to 250°F) for stable performance across diverse operating conditions
- Optimized installation torque through 3/16" hex drive design for consistent seating without head protrusion
- Enhanced surface protection with non-marring nylon tip that safeguards sensitive components from damage
- Industry compliance assurance meeting ASME B18.3 specifications for guaranteed dimensional accuracy
Professional Applications & Engineering Value
This 18-8 stainless steel set screw with nylon 6/6 tip delivers exceptional engineering value in precision assembly applications where vibration resistance and component protection are critical. The UNF fine thread configuration with Class 3A fit provides superior holding power in machinery, automotive components, and electronic enclosures where precise axial positioning is required. The headless hex drive design allows flush mounting in confined spaces while maintaining Rockwell B80 hardness for repeated installation cycles. The green nylon tip offers visual inspection capability while creating a reliable friction lock that eliminates the need for additional locking mechanisms, reducing assembly time and maintenance costs in industrial settings.
Specification Summary & Compliance
Manufactured to exacting ASME B18.3 standards with UNF 3/8"-24 fine threads and Class 3A thread fit for precision dimensional control. The 18-8 stainless steel construction provides consistent mechanical properties with Rockwell B80 hardness. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. The nylon 6/6 tip maintains integrity across the specified temperature range of -50° to 250°F while providing reliable non-marring performance.
